●Total volume: frequently used keys, temporarily shut down during performances. ●Bass/treble/MIC brightness: independent adjustment to meet individual needs; (note:these 3 knobs are gentle when debugging, no need to force
●Phase: Invert the sound wave180 degrees to suppress howling.
●MIC Volume: Pick up the sound waves in the guitar box; make the music more abundant. Theboarding function is realized through MIC When the speaker screams, it is adjusted by the MIC volume.
●Indicator light: The red light prompts charging, and it turns to green light when fully charged.
●USB charging port: compatible with 0.5-2A mobile phone charging head/power bank for charging.