Sound: stereo
Frequency response: 20 Hz - 20 KHz
Speaker size: 40 mm
Speaker impedance: 32 Ω
Microphone type: omnidirectional
Microphone sensitivity: -38 dB ± 3 dB
Backlight: 7 colors
Connectors: 2x 3.5 mm jack, USB (for LED light)
Cable length: 2.2 m
https://marvo-tech.hk/index.php?c=content&a=show&id=90