Stereo Dual Bluetooth Headset<br />The Bluetooth version: Bluetooth v4.0 + EDR <br />Mode: HFP??HSP??HD Voice??Voice Prompts A2DP??AVRCP??IOS BATTERY STATE MONITOR ??Multipoint<br />Frequency: 2.4GHz<br />Transimit Power: Class 2<br />Adapter: AC Input 110-240V・ DC out put 5V<br />Music Time: 3.0H about<br />Talking Time: 4H about<br />Standby Time: 110H about<br /><br />Package includes: 1 x headphone・ 1 x charging cable