OXA Wireless Bluetooth Headset Foldable Noise Cancelling Sport Headphones with Microphone, NFC and Pedometer for TV Smartphone Devices, Black & Red OXA Bluetooth headset with advanced v4.1 Tech: the sport headphones provide high-fidelity stereo bass music and clear speech within 33 feet/10 meters Pair with 2 Bluetooth devices at a time: our cvc6.0 Noise cancelling headphones can pair with 2 different Bluetooth devices simultaneously Super long and excellent battery with 800mAh high capacity rechargeable build-in lithium battery, wireless headphones last up to 60 hours talking time NFC quick and easy pairing: you have two ways to pair your Bluetooth device Pedometer track your activity accurately everywhere you go: this NFC workout headphones with build-in pedometer allows you use our android app