Locustek Bluetooth Headphones, Best Wireless Sport Earphone Headset for gym, running, workout, Sweatproof IPX7 Waterproof, Universal Earbuds w/ Mic HD Stereo Noise Canceling and 8 hr Battery HD SOUND QUALITY - Featuring amazing HD Quality Sound with Intelligent Noise Canceling Technology for optimal music listening and telephone talk clarity. State of the art acoustic components allow for the best sound quality with deep base and crystal clear treble. MOST COMFORTABLE - With their Ultra Soft Flex Fit ear hook design, these Wireless Sport headphones provide far Better Comfort than other headsets. There are 3 sizes of soft earphone tips provided with each order to ensure a Comfortable Fit. Every pair comes with a tether tie, so that their connecting wire can be easily managed. Even the endurance athlete can rest assured that comfort will last. LONGEST BATTERY LIFE - New lithium polymer battery allows up to 8 hours of music and talk time, with only a 1.5 hour charging time and an incredible 220 hour standby charge. Additionally, a car charger adapter is included with every order. BLUETOOTH UNIVERSAL COMPATIBILITY - Connect with ANY bluetooth enabled device. V4.1 Bluetooth Technology and Advanced Digital Processing for a seamless HD listening or telephone talk experience, up to 33 feet away, and the ability to connect with 2 devices simultaneously. Detailed manual is provided, with easy to understand instructions. Equipped with Voice Prompting Technology and LED Indicator Lights. SWEAT PROOF - IPX7 Waterproof Certified, tested to 1 meter depth, fully submersed in water. Note: Not designed or intended for swimming or diving. FULL 1 YEAR WARRANTY - 30 day no questions asked return policy and a 1 Year Manufacturers Warranty.