CoMica CVM-AX1 is a 3.5mm dual channel audio mixer for camera / camcorder video recording. Supports positive and passive microphone, real-time monitoring, the functions of two volume control knobs, giving you a compact solution for audio mixing. 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 control buttons 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. Positive and passive microphone support: The CVM-AX1 audio mixer is suitable for most microphones. You can use it by simply adjusting the button according to your microphone type. If you are using LINE IN, set the switch to 'LINE'; If you are using a positive microphone (microphone with internal battery power), set the switch to "MIC"; If you are using a passive microphone (microphone without internal battery power), please set the switch to "3V". Real-time monitoring support: The CVM-AX1 audio mixer also has a real-time monitoring jack on the audio mixer that allows listening to audio while recording. Unique design: the audio mixer is made of aluminum and is sturdy and durable. Three cold shoe connectors ideal for recording videos with any DSLR or camcorder that comes with a standard mounting foot. Suitable for a variety of occasions: The easy-to-install audio mixer has 3/8 "and 1 screw holes. / 4 \ "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 * AAA 1.5V * 2 battery (batteries not included) Operating temperature: 0 ~ 50 Product size : 9.5 * 5.5 * 4.9cm / 3.7 * 2.2 * 1.9in Product Weight: 225g / 7.9oz Size Packaging: 13 * 12 * 7cm / 5.1 * 4.7 * 2.8 inch Package Weight: 340g / 12oz Package List: 1 * Audio Mixer CoMica CVM-AX1 1 * 3.5mm Audio Out Cable 1 * Cold Shoe Holder 1 * User Manual (English & Chinese)