The Sennheiser EW-DP ME4 Set is a portable digital UHF wireless microphone system designed for filmmakers, content creators, and broadcasters. It features a compact digital receiver with an intuitive user experience, Bluetooth synchronization, and Smart Notifications. Choose between the ME 2 omnidirectional lavalier for clear dialog or the ME 4 cardioid lavalier to isolate speech in noisy environments. The system has dimensions of 86 x 67 x 28 mm (3.39' x 2.64' x 1.1') and weighs 804 g. It comes with an EW-DP EK digital portable single channel receiver, EW-D SK digital bodypack transmitter, ME 4 cardioid lavalier microphone, mounting kit, BA 70 li-ion battery & (2) AA battery, locking 3.5 mm TRS plug to 3.5 mm TRS plug cable, locking 3.5 mm TRS plug to XLR plug cable, and USB-C charging cable.