Bluetooth protocol: V5.0

Effective distance: 10 meters

Speaker: composite film aluminum ring, 0.3-0.5 mW, frequency response 100HZ-10KHZ

Battery: lithium battery, headset 3.7V/55mah charging box 400mah

* Standby time: 100 hours

*Talking time: 2-3 hours

* Charging time: 2 hours

products use: 

1.Turn on :The headset automatically turn on after being removed from the charging box, or manually pre ss and hold for 3 seconds to turn it on Turn off : It can be automatically turned off after being placed in the charging box, or you can manually press any button on the left and right ears to turn off.

2.Call mode: When the headset is turned on and connected to the mobile phone, long press the headset button 3S to wake up Siri, and the two headphones work at the same time. Click on any head set to launch Siri. When call coming, there will be electronic sound + broadcast number, click any earphone to answer the call, click any earphone to hang up during the call, Long press 2S to send a prompt tone "beep" to reject the call.

3. Button definition: Double-click: play/pause, answer/hang up three clicks: Click three times on the left ear of the previous song, and double-click on the right ear on the next song for three seconds.