Bestpriceam Q2 Sport Stereo Touch Button Wireless Bluetooth 4.1 Headphone Earphone (Sliver) Effective range:10 metres farthest., Perfect for Sports wearing:Comfortable,Light,Convenient.With high quality Microphone and noise cancellation. Music playing: 3.5 Hours, Talk time: About 4 hours, Charge hours: About 1.5 hours, Soft in Ear Earbud Design, no need earhook also can use. Function: call dialing, remote answer / end / reject / switch, telephone redial, mute, volume control, English switch, smart one for two, music pause / play, up and down the song Applications: Supports any, IPAD tablet, desktop computer with a Bluetooth device class phones. Not carrying a Bluetooth-enabled desktop computers can be used with a Bluetooth adapter.