: A red light shows while charging and turns off when full. Startup : Press and hold the Power button for 1 second.

To help you troubleshoot or set specific features, are you having trouble with a or error message ?

: If you can't format the card in the device, use a computer.

If you need a digital copy, you can download the Ritmix AVR-300 Instruction Manual from the manufacturer.

: Press the MODE button to switch between recording and playback. Menu Settings : Press MENU to open settings. Use left/right keys to navigate. Press OK to confirm a selection.