Kinivo BTH260 (V2) Premium Bluetooth 4.0 Sweatproof IPX7 Rated Sport Headphones with 25 Hour Rechargeable Battery - Supports Wireless Audio Streaming and Hands-Free Calling (Grey) Guaranteed Sweatproof : Built to perform for sports or active lifestyles with guaranteed IPX7 rated sweatproof nano technology, a sleek design and secure fit Enjoy latest Bluetooth 4.0 wireless music and hands-free calling capabilities with noise-cancelling microphone Incredibly long-lasting (25 hours) rechargeable battery which can be quickly charged up in 2-3 hrs Unleash powerful and rich CD-quality sound with amazing clarity and deep bass- supports AptX high bit rate codec Includes protective carrying case, charging cable and comes with 1 year limited warranty and lifetime US based customer support