The Saramonic AX1 is a compact and lightweight 2-channel microphone and audio mixer that is battery-free. It features two 3.5mm TRS inputs with input level attenuators and a single 3.5mm TRS output with Mono/Stereo switch. It includes TRS and TRRS output cables, making it suitable for use with cameras, smartphones, tablets, and more. The mixer is incredibly small and light, weighing less than half an ounce and less than 2 inches wide, making it easy to add to any setup without adding bulk. It is ideal for micro wireless systems and battery-powered shotgun mics. The product is from China and has a model number AX1.