3.5mm microphones or multiple sets of wireless microphones. It also has two volume adjustment buttons that allow you to independently control the input volume.
Mono/Stereo Output Switch: Just adjust the button, you can freely choose the audio output mode you need and get different effects.
Support Positive & Passive Mic: The CVM-AX1 audio mixer is suitable for most microphones. You can use it simply by adjusting the button according to your microphone's type. If using LINE IN input, set the switch to 'LINE'; If using a positive microphone (Microphone with internal battery-powered), set the switch to 'MIC'; If using a passive microphone (Microphone without internal battery-powered), set the switch to '3V'.
Support Real-time Monitoring: The CVM-AX1 audio mixer also has a Real-time Monitoring jack on the audio mixer that allows you to listen the audio while recording.
Unique Design: The audio mixer is made of aluminum and is sturdy and durable. Three cold shoe connectors ideal for shooting videos with any DSLR or camcorder that has a standard mounting shoe.
Suitable for a Variety of Occasions: Easy to install the audio mixer has 3/8" & 1/4" screw holes for external devices, such as video monitors, LED lights, tripods, etc.

Specifications:
Brand: CoMica
Model: CVM-AX1
Input: Mono * 2(L/R); Stereo * 1 (S)
Output: 3.5mm port output; Headphone output
Compatible Battery * 1.5V AAA battery * 2 (Batteries are not included)
Working Temperature: 0℃~+50℃
Item Size: 9.5 * 5.5 * 4.9cm / 3.7 * 2.2 * 1.9inch
Item Weight: 225g / 7.9oz
Pakage Size: 13 * 12 * 7cm / 5.1 * 4.7 * 2.8inch
Package Weight: 340g / 12oz

Package List:
1 * CoMica CVM-AX1 Audio Mixer
1 * 3.5mm Audio Output Cable
1 * Cold Shoe Mount
1 * User Manual (English & Chinese)