This Sennheiser EW-DP 835 SET (R1-6) is a portable digital UHF wireless microphone system. It's great for filmmakers, content creators, and broadcasters. The set comes with an SKM-S handheld transmitter and MMD 835 cardioid dynamic microphone module. It has an all-new portable design. The compact digital receiver offers an easy user experience. Dimensions are 86 x 67 x 28 mm (3.39' x 2.64' x 1.1') and it weighs 994 grams. It can be used for on-camera interviews and capturing clear audio in noisy places. Operating temperature range is -10 °C - +55 °C (14 °F - 131 °F).