Lectrosonics WM Watertight Beltpack Transmitter, with M152

Designed for wet or dusty environments, the WM transmitter features O-ring sealed battery compartments and input jack, a compression sealed antenna port and gasket sealed control panel and back cover. Dual AA batteries provide twice the operating time of earlier watertight transmitter designs. Larger membrane switches and control panel and a highly visible, backlit LCD enhance the user interface. Includes M152 WP Lavalier Microphone.
Features:
-Selectable output power to maximize battery life or operating range (50, 100 or 250 mW)
-Machined aluminum, corrosion resistant housing
-Water resistant seals for use in wet environments
-LCD interface with lockout option
-Programmable compatibility modes for use with a wide variety
of different receivers
-Servo Bias input circuitry with selectable voltage