Before using the device, please connect the master with the power to charge it.
1) Insert the charging cable of the USB plug into the charger with the small port connecting with the headphones.
2) When charging, the red indicator of the headset will light up; when charging is finished, the red indicator will go out.
Basic operations:
Startup: Press the power/play button for approximately 5 seconds until the blue indicator lightsup and flashes once every 5 seconds.
Shutdown: Press the "off" button, then it will quickly shut down. At this moment, the blue indicator will go out.
Volume up: Press the V+button
Volume down: Press the V - button
Feature of secure phone call
1) Automatic answering phone call
When there is a phone call, you will hear the ringing and automatically receive the call approximately 3-5 seconds later.
2) Terminating a call
When you want to end the phone call, you can terminate it by pressing the phone/play button
3) Rejecting a call
When there is a