The OMNITRONIC UHF-E Series bodypack transmitter operates at a fixed frequency of 531.9 MHz within the UHF 518–548 MHz band and is supplied with a cardioid condenser lavalier microphone. It provides adjustable sensitivity, FM modulation and an RF output power of 10 mW. The transmitter uses a 3-pin Mini XLR microphone connection and is powered by two AA batteries. Its black plastic housing measures 6.8 × 2.3 × 10 cm and weighs 0.14 kg.