Edge Sports ES500B Noise Cancelling Wireless Bluetooth Earbuds Headphones with Microphone Superior HD sound: Incredible sound quality with deep bass and crystal clear treble combined with cvc 6.0 noise cancellation technology Hours of uninterrupted music and talk: High capacity batteries provide up to 8 hours of music at full charge Latest Bluetooth technology: Bluetooth v4.1 technology allows for super fast pairing with all of your Bluetooth enabled devices Comfortable and secure fit: Flexible ergonomic ear hooks naturally fit the contours of your ear for prolonged use 1 year warranty