CoMica CVM-AX1 is a 3.5mm Dual-channel audio mixer for shooting videos with camera / camcorder. It supports positive & passive mic, real-time monitoring, dual volume control knobs functions, which provides a compact audio mixing solution. Features: Flexible Combination: The CVM-AX1 audio mixer has two mono output jacks and one stereo output jack, supporting two 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)