ACIL H2 - Headphone Components; Powering On;Off

Headphone Components
Powering on/off
To power on：
Press and hold MFB button for 2 seconds until it blinks
blue and you hear the power-on tones.
To power off：
Press and hold MFB button for 4 seconds until it blinks
red and you hear the power-off tones.
Volume DownLED Indicator
MFB ButtonUSB Connector
Volume Up
6