The Saramonic SRLAVMIC Audio Mixer with Lavalier Microphone Kit is a professional microphone system with a 2-channel audio mixer. It features a headphone monitoring jack and a mono/stereo output switch. The kit is compatible with iPhone 4S, 5, 5S, 6, 6S, Samsung Galaxy, Android smartphones, DSLR cameras, and camcorders with a 3.5mm mic input, as well as GoPro HERO3, HERO3+, and HERO4. The product requires 1 AAA battery and has dimensions of 19.1 x 14.61 x 4.29 cm and weighs 160g. It is manufactured by Saramonic and has an ASIN of B01HFGDN28. The product is not discontinued by the manufacturer and is made in the United Kingdom.