6. How to use the RR13 AMP function?

[Connect to a mobile phone]

Slide the Band/Mode selector switch to AMP position. Use a Type-C to Type-C cable with a built-in DAC chip to connect a player/phone/PC that supports USB audio output through the DAC end, and connect the input end to the RR13. Now you can play audio to achieve power amplification. (Note: The cable direction is from the connected device to the RR13.)

[Notes]

1. Due to the systems and hardware differences in Android phone or player, some devices may have compatibility issues.

2. Some phones may need to enable the OTG function manually in order to use normally. The specific settings can consult the corresponding phone customer support.

3. Some phones will prompt "non-certified digital headphones", you can ignore this message and continue using normally.

4. iPhone models before the iPhone 15 require a Lightning to Type-C adapter.