One Button Recording:
Push the Power Button to "ON" Position, the Indicator light becomes red, then to Blue, the Recording is started.
Stop Recording:
When Recording, Push the Button to "OFF" position or Connect it to the Computer, the Blue Light is off, then it stops and save the recorded files.
Playback:
Connect the USB Disk Recorder to the Computer, copy the Recording files and playback to your Computer.
Charging:
Connect the USB Interface to Computer or other Device, when the Red light Twinkles, it's Charging. When fully Charged, the light becomes Red.