DESCRIPTION:
1. In the off state, press and hold for 3 seconds to start the machine; In the
power on state, press and hold for 3 seconds to shut down;
2. After power on, it will automatically connect back to the last Bluetooth
handheld device. If it is the first time to power on, it will immediately enter
the self pairing mode with English voice prompt.
3. After pairing with Bluetooth handheld device, it can be executed when
playing audio. Short press "pause" and "play". In the call state, short click
"answer call", long press "reject call", and double-click "dial the latest call".
(right button).
4. Play the audio. Short press "next" and long press "volume up". Left
button): play audio, short press "previous song", long press "volume down".
5. Power supply: the Bluetooth cap has built-in high-performance polymer
200MAH battery, and the PCB board has charging protection for the battery,
which can work while charging（ The red light will be on when charging, and
it will be off when fully charged).
