1. Material: PCB + acrylic shell 2. Features 4 3.5mm inputs and 1 3.5mm output, capable of mixing signals from CD players, musical instruments, portable recording devices, video playback devices, etc. 3. Small and delicate passive circuit design will not enhance or degrade audio signals 4. It works without batteries or external power supply, is easy to carry and can be used anytime and anywhere. 5. 1 main output volume knob and 4 independent input volume knobs, the 4 inputs do not interfere with each other 6. Dimensions: 83.5x54x21mm (excluding knobs) 7. Net weight: 93 grams
