LD Systems U505 BPL, UHF Wireless System with Pocket Transmitter and Lavalier Microphone (Cardioid), True Diversity, 96 Channels in 8 groups of 12 channels each, Audio frequency range: 30 - 16,000 Hz, Switchable transmitting power: 2 mW, 10 mW, 30 mW, Frequency scanning at the receiver, Automatic frequency scan with infrared transmission of the setting from the receiver to the transmitter, Pilot tone, Bright OLED display, Transmitter operation with 2 AA batteries or rechargeable batteries, Frequency band: 584 - 608 MHz, XLR and jack output, Operation via 12 - 18 V DC power adapter, BNC Antenna connections, Included: 2 AA batteries, antennas, case, foam windscreen and power adapter