Manual

Application method
1.Schematic diagram
(According to below diagram , it include A key (up key),B key (down key),
OLED display screen ,Connection identifier , charging identifier.speaker.
Microphone.battery holes)
Charing identifier Microphone
Connection identifier A key
Screen B key
Speaker
Press the B key for 3 seconds , it will display ”power on” ,again ,it will
display ”power off”.