With this Bluetooth sports headphone￡? you will thoroughly get rid of the cable bound when exercising (such as running￡? climbing mountains￡? cycling￡? walking etc) Bluetooth 4.1 combined with noise-canceling technology provide crystal clear sound quality. And its light weight design reduces the pressure and pull force on the ears and head of traditional headphones.It is a really good choice. <br> <br> <strong>Features:</strong> <br> Bluetooth V4.1 + EDR version￡? high fidelity sound quality. <br> High-performance of anti-interference￡? high-speed data transmission and high-efficiency. <br> Built-in microphone with noise reduction￡? which protects your listening and offers you high-quality Sound effect. <br> Support hands-free call and voice prompt￡? you can operate on it to answer/reject/redial phone calls￡? or listen music anytime and anywhere. <br> Integrated Multi-point Technology: Can simultaneously connect two smarts phone. So you can seamlessly switch between your business and personal phones. <br> Compatiable with most devices with Bluetooth function￡? and it supports auto-reconnection. <br> <br> <strong>Specification:</strong> <br> Bluetooth: Bluetooth 4.1 + EDR <br> Chip: CSR 4.1 <br> Supporting protocol: HFP￡? HSP￡? A2DP￡? AVRCP <br> Operating distance: 10m <br> Stereo audio: APTX <br> Battery capacity: <br> Music play: 4 hours (depending on the music volume) <br> Talk time: 4 hours <br> Standby time: 100 hours <br> Charging time: 1.5~2 hours <br> Skip song: Support <br> Voice prompt: Support <br> Noise reduction: CVC <br> Color: Black￡? White￡? Silver(optional) <br> Package size: 14 * 8.2 * 3 cm / ?5.5 * 3.2 * 1.2 in <br> Package weight: 49 g / 1.75 oz <br> <br> <strong>Package List:</strong> <br> 1 * Earphone <br> 1 * USB Charging Cable <br> 1 * User Manual