PURE AND PERFECT SOUND Seamless switching between music and calls. Quick Details,Great sound with control. Bluetooth Bluetooth stereo headset with touch button Specifications:Bluetooth specification: V2.1+EDR Bluetooth profiles supported: HSP, HFP, A2DP and AVRCP Operating distance: 10 meters Class II Rechargeable 230 mAH Li-polymer battery Talk time: Up to 11 hours Music playing time: Up to 10 hours Standby time: Up to250 hours Charging time: About 2.5 hours Charge input voltage: DC 5V  Features:Folding design, easy to take with you. Extreme comfort from adjustable headhand and earplug. Embeded microphone for hands-free conversation from Bluetooth-enabled mobile phones. Enjoy stereo music wirelessly from Bluetooth A2DP devices. Pause the music & Play back automatically when receives an incoming call. Touch button for previous/next track, volume up and volume down. Call transfer between the headset and Bluetooth mobile phone. Automatically connect to the last connected Bluetooth device. APTX version is also available upon requested

bluetooth headphone(BH-15A)