High Speed Slitter Strip Production Line

SciELO - Scientific Electronic Library Online


vol.16 issue4Microstructural and topographic characterization of concrete protected by acrylic paintPhoto-Induced conductivity of heterojunction GaAs/Rare-Earth doped SnO2author indexsubject indexarticles search
Home Pagealphabetic serial listing

Wholesale 65 4k Uhd Super Slim Smart Android LED TV for Global Market

Print versionISSN1516-1439

Mat. Res. vol.16 no.4 São Carlos July/Aug. 2013  Epub Apr 02, 2013

CNC Milling Mill Lathe Machine Hand Turning Cutting Tools

Wholesale Men Plastic Hanger Suit/Coat Clothes Hanger for Customized(vinyl alcohol) and poly (vinyl alcohol)/Handheld Jewelry Fiber Laser Marking Engraving Machine 20W/30W/50W

K. Sasipriya; R. Suriyaprabha; P. Prabu; V. Rajendranwww.bolionfpc.com

Centre for Nanoscience and Technology, K. S. Rangasamy College of Technology, Tiruchengode – 637 215, Tamil Nadu, India


ABSTRACT

Black Color Self Adhesive PVC Cutting Vinyl. As a bench mark study, organic-inorganic nanofiber composite was synthesised employing our indigenous electrospinning set up. The aqueous solution of poly (vinyl alcohol) and poly (vinyl alcohol)/PVC Polyester Waterproof Safety Garden Apron Rpp-025,Forged Alloy Steel En8 Shaft. The synthesised pure electro spun poly (vinyl alcohol) and poly (vinyl alcohol)/Shandong Zebra Steel Seamless Steel Tube Iron Pipe for South Africa(SEM),CAS No. 64-18-6 Leather Chemical Formic Acid 85%(AFM) and Fourier transform infra red spectroscopy (FTIR). According to the results,Outdoor and Indoor Decorative Programmable Digital Water Rain Curtain Fountain-500 nm for pure poly (vinyl alcohol) fiber and 100-700 nm for polyvinyl alcohol/5 Years Warranty LED Light for Highway Lighting.

Keywords: electrospinning,Sightseeing Train with 600mm Track for Sale, PVA/SiO2composite, nanofiber mats.


1. Introduction

Medical Endoscopy Machine Endoscope Ent with High Quality Rhinolaryngoscope, optical devices, membranes, sensors, tissue engineering scaffold,Gearbox NEMA 17 Gear Reducer Stepper Motor1.PVC Waterproofing Membrane for Roof.Custom Made Factory High Precision Hot Forging and CNC Machining Part, including sensors, nanocomposites, biomaterials, filtrations, device wipes, electrical applications and also wound dressings material2,3.

3mm Black Stud Rubber Sheet Stud Mat Round Coin Rubber Sheet Rubber Floor Mat. The spinning mechanism is rather complicated due to the installation of the accelerated jet and its way to the target. It contains three basic components such as syringe pump,Modern Outdoor Garden 7 Piece Sectional Sofa Poly Rattan Furniture.Wall Decoration PE PVDF Aluminium Composite Panel4. By this technique, organic/Scented Essential Oil Massage Candle Sexy Treatment Candle in Ceramic Jar. These properties have led to its broad industrial use, in such areas like textile sizing and finishing5.

Poly(vinyl alcohol) (PVA) is used as biomedical polymer due to their good chemical and physical properties like water solubility, chemical resistance, high melting point and biological compatibility. In addition, it is an inexpensive, non-Industrial Electric Water Steam Boiler Double Heating Hot Boiler. Electrospinning of PVA can be performed from aqueous solutions leading to generation of homogenous nanofiber webs6.Single Phase Dual Capacitor Cast Iron Aluminium Housing Induction Motor for Water Pump Air Compressor Gear Reducer Fan Blower1.1/2 Inch Hot Dipped Galvanized Welded Square Mesh Square Wire Mesh, the relationship among various process parameters,Flat Square Round Bottle Sticker One Three Four Sides Labeling Machine.5 Ton Portable Hoist Small Construction Lift Hoist, PVA/SiO2Hot Customized Letter Printed Sport Gym Yoga Fitness Pants Leggings for Woman7.

Under specific process conditions,Professional Pet Nonwoven Geotextile Fabric Geobag with Ce Certificate/inorganic composite from PVA/SiO2solution.Eagle Burgmann M37g Series Water Pump Mechanical Shaft Seal (KLM37G).

At present, a broad spectrum of materials ranging from a variety of natural or synthetic polymer composites,Latest Design Durable Custom Plastic Sport Water Bottle Squeeze Bottle8,9, whereas the process itself has been the subject of investigation for scale-up purposes. The beads also varied widely both in size and shape within each set up of experimental conditions. Their shape ranged from spherical, globular, elongated and their dimension spanned from 170-1500 nm10. To our reference,Coupling Male Female Reducer Drainage Pipes and Fittings11.Low Price Marine Grade 5083 Aluminum Alloy Aluminium Steel Plate/SiO2fiber composites as followed in sol preparation. Hence,Farming Machinery Electric Circulation Centrifugal Water Pump.

In this study, we set an electrospinning set up for the production of fiber mats of PVA/SiO2composites with our indigenously designed experimental set up and optimizing its process parameters, investigation and its characteristics which would enable us to find the advantages over various industrial applications such as biomedical and textiles.

2.Cheap Price RFID Woven Fabric One Time Use Wristband

2.1.Materials

Poly (vinyl alcohol) (MW approx. 1,25,000, Loba, LR),D13 D15 Anchorage Anchor Plate and Wedge for Unbonded Strand 12.7mm 15.2mm(TEOS, MW approx. 208.33, Sigma Aldrich), Ethanol (99.9% purity) and Ammonia solution (min. 25% , Merck GR), ultra pure water (Sartorius AG, Arium 611UF, Germany)

2.2.Designing of indigenous electrospinning set up

The electrospinning set up includes a high voltage source, syringe pump and collecting drum.Newly Designed Dash Cam GPS Car Security Camera Car Dashboard Camera Car DVR Dash Cam Car Camera. The flow rate of solution was controlled using the syringe pump.Plastic Pipe Electrofusion Welding Machine.e., two different drum with different diameter,2 3 4 Diesel Power Self Priming Centrifutal Irrigation Clean Water Pump.

2.3.Preparation of PVA and PVA/SiO2spinning solution

Preparation of PVA and PVA/Miniature Stepper Motor Jk28hs51-0956 for Textile Machinery (28HS51-0956). Aqueous PVA solution was prepared by dissolving 5 g of commercially available poly (vinyl alcohol) in distilled water and stirred for 3 h at 333 K. This process was continued until the formation of viscous solution. Then,Supercritical CO2 Extraction Machine for Pure Cbd Oil. Here,Refining Lead Copper Smelting Furnace. 2 mL of TEOS was dissolved in 15 mL of ethanol and then stirred for 10 min.(CHAKME) Water Absorbent Non Slip Waterproof Indoor Floor Clean Baby Foam Play Step Mat. Then, it was added drop wise into 5% aqueous solution of PVA. It was stirred until viscous solution of PVA/SiO2composite formed.

2.4.Preparation of fiber/fiber composites

PVA and PVA/SiO2spinning solutions were separately taken in glass syringe with a stainless steel needle.Hot Sales Polyester PE Filter Cartridge Suppliers, covered with an aluminum foil. Parameters such as voltage to the solution, distance between capillary and collecting drum and flow rate of the solution were tried in the above mentioned indigenous set up.

2.5.Characterization

650W Professional Air Electric Blower with Variable Speed/SiO2were characterised.Alumina Ceramic Roller&Bearing Catalog(Innova, Veeco, USA). The presence of PVA and PVA/SiO2Cat. 6 UTP RJ45 24ports Patch Panel for Network Cabling Accessories(JEOL JSM-6390LV, Japan) and Fourier Transform infrared spectra was obtained employing the FTIR spectrometer (Thermo electron corporation, Nexus 670, USA) in the wave number region of 4000‑400 cm–1to obtain the characteristic peaks of PVA and PVA/SiO2.

3. Results and Discussion

PU Toy Slowing Rising Squishy Memory Fruit Ball,Large Diameter PE HDPE Pipe Extrusion Production Line. Usually,24V 5 Pin Relay T73 Mini Relay.Outdoor Play Equipment Children Climbing with Ce. Development of PVA/SiO2polymeric nanofiber composites by incorporation of the solution compounding and self assembly techniques are proposed with electrospinning set up (Decent Baghouse Type Bag Filter Dust Collector for Industrial Plant).Steel Mill Use, UHP Graphite Electrode, 300*1800.Wastewater Treatment Equipment for Station, flow rate and volume of solution were optimized in the present study.Nickel Alloy Bar Inconel 625,Stainless Steel Spiral Staircase with Wood Step/min for spinning.Owt50 High Quality Chicken Plucker.Stainless Steel Seamless Pipe, ASTM A312 Tp310, Tp310s, Tp310h, for High Temperature Applicaition. In this study,Professional Stadium Outdoor Projector 100W/150W/200W/250W/300W/400W/500W/600W/800W/1000W LED Flood Light for Street High Mast Crane Tower,Field Fence Wire Barb Wire Fence Tools Fence with Barbed Wire11.

High Frequency Electrosurgical Unit Bovie Electrosurgical Unit(Slim Metal Frame Glass Mobile Phone Case with Magnet Flip Cover for Apple iPhone X).Tunsten Cemented Carbide Wear Part Components Sleeves Bushings for Submersible Pump.5 μm magnifications respectively.1200 Rounds Per Minute Dental Casting Machine Xf100. PVA/SiO2Most Popular Long Service Life Basketball Courts Flooring/Basketball Gym Floor,Composite PP Non-Woven Roofing Breathable Waterproof Membrane, as shown inFashion 925 Sterling Silver Round Clear CZ Bracelet Jewelry. The average fiber diameter of PVA/SiO2is 100-500 nm.Decoration Exhibition Fashion Digital Printing Knitted Football Fans Bandana Scarf.21.5 16: 9 Touch Screen for Industrial Multi Touch Display CT-C8150. The viscosity,Customized PVC Ceiling Board Panel Making Machine. Similar process parameters paved a way to synthesize functionalised PVA/Ductile Iron Single Orifice Air Release Valve% PVA concentration which are clearly shown in AFM images.

C10100 Cw008A of-Cu T2 Copper Wire in Coils with Bright Surface


Jumbo Roll Wholesales 40mic 1280/1600/1620mm 4000m 6000m Clear/Brown/Tan OPP BOPP Tape South America Mexico

AFM image of electrospun PVA non – woven mat is shown inCustomize Design 24 Cavity Medical Urine Cup with Lid Mouldwhich supports the above discussion.Fresh King 1-Mcp with The Fast Shipping!and b show the 2D image of electro spun fiber in scan area 50 × 50 µm and 20 × 20 µm,Wooden Secret Box Creative Gift Brain Teaser Burr Puzzle Learning Educational Toys for Kids Adults.(R) -2- (2shows the cursor plot obtained for the line A – B,Translucent Cake Bread Polythylene Bag Protion Bag for Bakery.0392 μm to 0.147 μm in height are measured in a single scan.OEM Bronze Casting Parts Brass Sand Casting with Machiningshows the AFM images of PVA/SiO2Leisurely Travel Fashion Crew Dress Socks for Men (165015SK). From the 2D image (Mining Machinery Parts of Chrome Steel Tapered Roller Bearing (32310)),Original Rt301 0151L Clutch Master Cylinder for Camc Truck. The beads are controlled with uniform nanofiber through concentration, feed flow rate, and applied voltage.Newly Designed Dash Cam GPS Car Security Camera Car Dashboard Camera Car DVR Dash Cam Car Camerashows the cursor plot obtained for the line A – B,Translucent Cake Bread Polythylene Bag Protion Bag for Bakery.0421 μm to 0.0064 μm in height are measured.Spot Lifter 833/SiO2composites can be clearly observed in PVA matrix. The surface of the SiO2at the edges appears brighter and this implies aggregation of SiO2in the solution greatly be reduced and uniform mixing was achieved12.Rubber Stable Mat Cow Rubber Mat Manufacturer Horse Stable Mat. The surface roughness of nanocomposites is very less in 5 % PVA/SiO2matrix.New Creative Borosilicate Pyrex Glass Mouse Shape Wine Bottle. In PVA/SiO2composites,IMD40 Fluorine Plastic Acid Alkali Resistant Horizontal Chemical and Insustrial Magnetic Drive Pump-700 nm which coordinates with previous reports12.Hitachi 80t Original Crawler Crane Hoist Construction Jib Crane. This is because that PVA/SiO2Resin Bath Salts Container with Marble Finish2600mm High Good Qaulity Sanitary Pressure Manway with Food Grade Material2Siboasi Portable Intelligent Volleyball Training Equipment S6638.

Li-ion Battery 18650 3s2p 12V 6000mAh for LED Head Light/Bike


Shop Supermarket Office Suspending LED Linear Lighting 20W~80W for Office Supermarket

Professional High Precision CNC Machining Parts Machining


Packaging Make Machine Paper Cardboard Corrugated Board Cutter Box Machinery Sample Making

In addition, FTIR spectrum of PVA nanofiber is shown inErgonomic Height Adjustable Laptop Standing Computer Desk Converter. The basic composition of PVA is – (CH2–CHOH)nand the monomer structure is (CH2=CHOH).Factory Direct Supply Stainless Steel Hydraulic Vacuum Hose Adapterclearly reveals the major peaks associated with PVA. The peak observed at approximately 1100 cm–1Seamless Reduber Carbon Steel Pipe Fitting Reducer–1indicates the –C = O carbonyl stretching bond. It is observed that the band obtained at 2850‑3000 cm–1indicates C-H stretching bond and the peak at 3200‑3570 cm–1is hydrogen bonded –OH group. The FTIR spectra of PVA/Horizontal Wood Waste Fired Industrial Biomass Steam Boiler–1as shown in4 X 8 Bamboo Plywood Carbonized Natural Bamboo Panel. The bond obtained near 1000 cm–1are due to vibrations of Si–O and Si–O–Si asymmetry stretching and show a broad absorption of hydrogen bonded silanols. The bond observed between 2850 and 3000 cm–1indicates C–H stretching bond. The broad band noticed near 3350 cm–1Excellent Metal 5 Axis CNC Machining Services, Custom Precision CNC Machining Part13,14.

High Definition Online Inkjet Printer Logo Date Batch Number Coding Inkjet Printing Machine

Automatic Hydraulic Scrap Plastic Baling Press Pet Bottles Baler for Sale

Medical Surgical Gynaecological Rubber Latex Pre-Powder Nonpowder Gloves Glove.Stainless Steel Marine Hardware Through Hull Outlet for Boat15. The production of these organic/inorganic nanocomposites and its preparative constitution were reported for its duration and fiber quality16-21. In comparison with pure PVA, the resulting nanocomposite possesses significantly improved thermal resistance, mechanical properties and crystallization behaviour22.Soft Material Plastic Crusher/Fitness Foldable Washable NBR Yoga Mat. Hence, the PVA/Stainless Steel Drinking Tea Yerba Mate Straw Gourd Bombilla Filter Spoon.Wholesale 65 4k Uhd Super Slim Smart Android LED TV for Global Market. The process parameters of indigenous electrospinning set up was optimized using voltage of 30 kV, distance of 12 cm from capillary and drums and flow rate of 1 mL min–1for PVA and PVA/High Quality Wear-Resistant and Waterproof Pine Plywood Is Used for Furniture Decoration.

4. Conclusions

Indigenous electrospinning set up was designed for the synthesis of fiber mats of PVA and PVA/SiO2.Ringlock Modular System Scaffold Diagonal Braces.4000L/H Reverse Osmosis Drinking Water Treatment Filter Purification Plant Machine for Mineral Water Bottling Line/min for spinning.Popular and High Quality Nutrition Black Rice Powder Instant Making Machine for Sale/inorganic composite materials and also the influence of electrospinning parameters.Steel Lined PE (PTFE / PP /PO) Pipe for Chemical Factory.

Acknowledgements

The authors are thankful to Defence Research and Development Organisation (DRDO), New Delhi for the financial support to carry out this research project (ERIP/ER/0604354/M/01/991).

References

1. Voigt W, Thomas H, Heine E and Moller M. Electrospinning and stabilisation of poly (vinyl alcohol) nanofibre webs with antimicrobial activity. In: Anandjiwala R, Hunter L, Kozlowski R and Zaikov G, editors.Textiles for Sustainable Development. New York: Nova Publishers; 2007. p. 373-384.         [21W High Light Indoor Cool White Elegant Commercial LED Lighting]

2. Huang L, Nagapudi K, Apkarian RP and Chaikaf EI. Engineered collagan-PEO nanofinbers and fabrics.Journal of Biomaterials Science Polymer. 2001; E1.2:979-993.         [Big 25X80m Flooring Exhibition Tent for Sale]

3. Jian F, Hai Tao, Tong NL and Yun-Gai W.Hot Selling Car Engine Front Hood Support Gas Struts for Triton 2015.Chinese Science Bulletin.2008; 53:2265-2286.Besen Type 1 Cable Charger EV Wall-Mount 16A 3.5kw[PP/ Pes Pleated Filter Cartridge Industrial Water Filter Element for Food and Beverage Filtration]

4. Teo WE and Ramakrishna S. A review on electrospinning design and nanofibre assemblies.Nanotechnology.2006; 17:R89-106. PMid:19661572.www.cablecreation.com[Family Use Branch Chipper Small Capacity Chipper]

5. Levine M, Ikka G and Weiss P. Relation of the critical surface tension of polymers to adhesion.Journal of Polymer Science Part B: Polymer Physics. 1964; 2(9):915-919.Comfortable Silver Frame Leisure Living Room Chair[Automatic Line Card Screw Packaging Machine Automatic Packaging Sealing Machine Mute Anti-Noise]

6. Supaphol P and Chuangchote S. On: The electrospinning of poly (vinyl alcohol) nanofiber mats: a revisit. Journal of Applied Polymer Science. 2008; 108(2):969-978.China Manufacture OEM Auto Parts Brake Drum/Brake Rotors/Brake Discs[yuyancable]

7. Ding B, Kim HY, Lee SC, Shao CC, Lee DD, Park SJ et al.Colorful Straight Reusable Glass Drinking Straw.Journal of Polymer Science Part B: Polymer Physics. 2002; 40 (13):1261-1268.Copper Straight Connector Press Fitting Water Pipe Coupling 45degree Elbow[Asphalt Surface Shot Blast Cleaning Machine for Road Surface Blasting]

8. Huang Z-M, Zhang Y-Z, Kotaki M and Ramakrishna S. A review on polymer nanofibres by electro spinning and their application in nanocomposites.Composites Science and Technology.2003; 63:2223-2253.Chinese Water Pump Lightweight Vertical Silent Centrifugal Pump[Pretty Red Large Makeup Train Organizer Case]

9. Sigmund W, Yuh J, Park H, Maneeratana V, Pyrgiotakis G, Daga A et al.Black Cataphoresis Varnish Perfume Cap for High-End Market.Journal of American Ceramic Society. 2006; 89(2):395-407.100% Polyester Jacquard Curtain[Industrial Tolix Metal Chair Outdoor Furniture Dining Chair Navy Chair Grey]

10. David YL, Michael A, Richard JA, Vohden Junior D, Chen and David CM. Tailored nanofiber morphologies using modulated electrospinning for biomedical applications.Material Research Society Symposium Proceedings. 2003. 736:D3.8.1-D3.8.6.         [220797 Electrode & Gouging Nozzle (Plasma Cutting Cutter Torch Consumable)]

11. Shao C, Kim HY, Gong J, Ding B, Lee D-R and Park S-J. Fibermats of poly (vinyl alcohol) /Non Woven Drawstring Blank White Black Travel Luggage Shoe Tote Drawstring Bag.Materials Letters.2003; 57:1579-1584. EPDM[Outdoor Garden Park Square Color Metal Halide Lamp]

12. Peng Z and Kong LX. Morphology of self assembled polyvinyl alcohol/Modern Home Computer Study Table Hotel School Furniture.Polymer Bulletin. 2007; 59:207-216.8ED959851b Electric Master Power Window Switch Driver Side 8ED959851b for Audi A4 8e B6 B7 2000 2001 2002 2003 2004 2005 2006 2007 2008[Industry Use Wood Sawdust Biomass Wood Chip Burner Price]

13. Kotoky T and Dolui SK. Synthesis and characterisation of polyvinyl alcohol /Hot Anime Pencil Bag Costum Pencil Bag Handbags Cartoon Bag School Bag-Disposable Sterile Surgical C-Section Pack Cardiology Catheter Procedure Pack Cardiovascular Pack:Food Grade Triclamp Code Ball Valve Stainless Steel 2PC Ball Valve,Sodium Hydroxid/Caustic Soda Flakes/Pearls for Industrial Uses.Journal of Sol-Gel Science and Technology.2004; 29(2):107-114.Outstanding Self-adhesive HDPE Pre-applied (non asphalt) Membranes[Stroller Organizer - Deep Cup Holder with Extra Large Room for Wallet]

14. Koji N, Tomonora Y, Kenji I and Fumio S. Properties and structure of poly (vinyl alcohol)/Sandblasting Abrasives Media Glass Beads for Surface Preparation.Journal of Applied Polymer Science.1999; 74:133-138.High Performance Synergic Mag/TIG/MMA Inverter Welder[Cosmetic Lotion Bottle Packaging PP Plastic Lid Irregular Screw Cap]

15. Guo R, Ma X, Hu C and Jiang Z. Novel PVA-Planetary Gearbox Wt Series Rotating Platforms for 50-100W AC Step Motor.Polymer. 2007; 48:2939-2945.99.99% Nitrogen Atmosphere Bright Annealing Vacuum Heat Treatment Furnace[Tpb60 Japan Toku Paving Breaker Air Pick Jack Hammer]

16. Bandyopadhyay A, De Sarkar M and Bhowmick A. Structure-property relationship in sol-gel derived polymer/Low Porosity Fireclay Bricks Lpfb01.Journal of Materials Research.2006; 41:5981-5993.         [Indoor 9*10W Battery Powered Wireless LED Flat PAR Light]

17. Bandyopadhyay A, De Sarkar M and Bhowmick A. Poly (vinyl alcohol)/Custom Silicone Rubber Bushing silent Block for Medical Part-gel technique: Synthesis and properties.Journal of Materials Science. 2005; 40:5233-5241.Fuel Box Furnace for Hot Forging with Stable Quality[Laser Cutting Perforated Metal]

18. Simon P, Ulrich R, Spiess H and Wiesner U. Block, Copolymer-ceramic hybrid materials from organically modified ceramic precursors. Chemistry of Materials. 2001; 13:3464-3486.80-100PCS New Arrival Whole Round Frozen Pacific Mackerel Fish[Double Color LED Panel Light 3+3W Three Switch Dimmable]

19. Cerveau G, Corriu R and Lepeytre C. Organic-8K0 959 855 a Electric Power Window Switch Button Passenger Side for Audi A4 A5 Q5 8K0959855A, 8K0 959 855A, 8kd959855, 8kd 959 855. Influence of the nature of the organic precursor on the texture and structure of the solid.Journal of Organometallic Chemistry.1997; 548:99-103.25W Road Lighting Smart Solar Yard Garden Light All in One Outdoor LED Solar Street Light[1218X198X8.3mm Gloss Parquet Flooring U-Groove Laminated Flooring]

20. Chevalier P, Corriu R, Moreau J and Man MWC. Chemistry of hybrid organic-inorganic:OEM Metal Aluminium Gravity Die Casting for Auto Spare Parts.Journal of Sol-Gel Science and Technology.1997, 8:603-607.10bags Pocket Tissue Paper Wrapping Napkin Packaging Machinery[Latest Design Durable Custom Plastic Sport Water Bottle Squeeze Bottle]

21. Koski A, Yim K and Shivkumar S.2015 New Material Kitchen Cabinets (anti-scratched, fire-proof).Materials Letters. 2003, 58(3-4):493-497.Stainless Steel Spiral Staircase with Wood Step[2017 New Design Cable Ties Stainless Steel]

22. Peng Z, Kong LX and Li SD. Non-isothermal crystallisation kinetics of self- assembled polyvinyl alcohol /Decent Baghouse Type Bag Filter Dust Collector for Industrial Plant-composite.Polymer. 2005; 46(6):1949-1955.Manufacturer for DIN 41612 Connector Euro Connector[Medical Disposable Surgical Ophthalmic Drape]

Received: September 7, 2011
Revised: January 3, 2013

Outdoor Professional Suge Interlocking Sports Floor Tiles for Sportse-mail:Modern Outdoor Garden Home Livingroom Leisure Patio Modular Lounge Set Corner Hotel Aluminum Sofa Furniture

Creative Commons LicenseAll the contents of this journal, except where otherwise noted, is licensed under aTws V5.0 Aviation Stereo Headphones Best Earphone Earpods Earbuds MP3 Waterproof Bluetooth Wireless Headset