Welcome to our shop: 100% brand new high quality.<br />1.Bluetooth version:V4.1 + EDR<br />2.Bluetooth profiles:Hands free / Headset<br />3.Radio frequency:2.402-2.480GHz<br />4.Transmission power:Class2<br />5.Support A2DP:music playback (audio output: 35mW｣ｬ Play / Pause)<br />6.Multi-point connections can be connected to two one with two Bluetooth devices simultaneously<br />7.Transmission range:10 m<br />8.Charging Power:AC input 110-240V DC output 5V (charging time / about 2 hours / charging voltage 3.7v)<br />9.4 hours talk time (music playback 3 hours / standby time 120 hours / working current <15mA)<br />10.Intelligent voice prompts prompted the state of equipment / to cable<br />11.Noise MIC:special top silicon Marks<br />12.Wearing styles:Ear / Stealth headphones patented product<br />13.Battery type:50mA rechargeable lithium battery<br />Our goal is to serve our customers.<br />Thank you for coming to our shop.