Features:<br />1. listening to the song correct｣ｬ support songs and then call｣ｬ<br />2. Caller ID｣ｬ the last call back｣ｬ all intelligent Chinese and English voice prompts｣ｬ boot｣ｬ pair｣ｬ shut down the phone power will be low voice prompts;<br />3. Apple phone power display｣ｬ you can always watch the headset power situation｣ｬ do not worry about the headset no electricity to make your life worry;<br />4. One to two connections｣ｬ can be connected to two mobile phones;<br />5. Bluetooth headset every time connected to the phone after the shutdown｣ｬ and then open the Bluetooth headset will automatically connect back to the phone｣ｬ but also more convenient;<br />6. Intelligent compatibility: support all with Bluetooth mobile phone｣ｬ tablet｣ｬ notebook｣ｬ singing it｣ｬ QQ music｣ｬ movies｣ｬ etc.｣ｬ all the mobile phone;<br />  <br />Product parameters:<br />1. Drive: 15mm<br />2. Impedance: 32 OHM<br />3. Bluetooth version: Bluetooth v4.1 + EDR<br />4. Bluetooth use band: 2.4GHz<br />5. Power level: CLASS II<br />6. Output power: 30mW<br />7. Bluetooth distance: 10 meters barrier<br />8. Frequency response: 20-20000Hz<br />9. Operating voltage range: 3.0V-4.2V<br />10. Mitou sensitivity: -42dB<br />11. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol<br />12. Powerful noise de-noising circuit (active noise reduction)<br />13. switch between Chinese and English (boot does not connect Bluetooth state｣ｬ press the switch 2 times｣ｬ hear the tone switch succe