LD Systems U518 BP, Bodypack Transmitter, Radio frequency range: 1785 - 1800 MHz, 96 Channels - 8 groups with 12 channels each, Input: 3-Pin mini XLR, Frequency response: 30 - 16,000 Hz, OLED display, 2x AA batteries, Operating time up to 10 hours, Detachable antenna, IR frequency synchronisation, Switchable RF power, Switchable amplification, Dimensions (W x H x D): 65 x 86 x 23 mm, Weight: 0.09 kg