The Movo AM100 is a 2-channel audio adapter, with a 3.5mm TRRS cable and a 3.5mm TRS cable input which allows you to shoot videos on Smartphones, DSLR cameras or camcorders. This adapter provides you with a compact dual-mic mounting and audio mixing solution, which allows you to easily mount and control two mics or wireless receivers. It requires no batteries or external power source so it's necessary to use mics that are battery-powered in order for it to work. The AM100 has three Integrated Mounting Shoes to attach microphones, wireless receivers, orother accessories, such as an LED light, monitor etc. Technical Specifications Inputs: One 3.5mm (1/8") stereo and two 3.5mm (1/8") mono Output: TRS 3.5mm or TRRS 3.5mm Input Level: -35dBu Frequency Response: 20Hz to 20 kHz (+/- 1.5dB) Construction: Aluminum Dimensions (LxWxH): 4.1 x 2.4 x 1.6" (105 x 60 x 40mm) Weight: 6.4oz (203g) Warranty: 1 Year