The audio input is 3P audio cable. 2 3p audio cable. It uses dual-core NE5532 imported chip;. 1 tone board. Material: PCB board, plastic.
For Audio Devices Audio Preamp Audio Setup PCB Board Material 3P Audio Input
Audio Preamp Frequency Adjustment Audio Setup Music Listening PCB Board Material
Audio Preamp Frequency Adjustment Audio Setup PCB Board Material Plastic Casing
Audio Preamp Frequency Adjustment Audio Setup Music Listening Plastic Casing
