OC-BTE240 New Sport Wireless 4.1 Bluetooth Headphone. IPX7 Waterproof Noise Cancelling Earbuds Designed to Stay in Ear, Light-Weight Earphone with Microphone & Voice-Prompt. SUPERB SOUND Quality through Bluetooth V4.1+EDR, CSR 8635 chipset for Best Stereo Sound and Superb Bass Sound. Clear high & low Volume. Best Bluetooth Headphone's Sound WATERPROOF; Not just Sweat proof but IPX7 waterproof making it more suitable for water sports. STATE OF THE ART EARPHONES DESIGN. Best workout sweat proof Bluetooth Headphones. Great for Running, Jogging, Hiking, Biking, and Gym. Stay in Ear Technology with Comfortable Ear Hook. CVC 6.0 Noise Cancellation Technology and Multi-point function, can connect 2 mobile phones at the same time. Easy to use Buttons, Allow Skip/Play/Pause on All your Music Tracks as well as all phone use without reaching your phone. Up to 30ft. Can be Connected with Two devices simultaneously. Super Quick Pairing with all Android, IOS and any Bluetooth-enabled Device. And a 1-year worry-free Manufacturer's Warranty.