the t.bone free U twin HT 823, 2-Channel UHF Wireless System with Handheld Transmitter, Frequency band: 823 - 832 MHz, Dynamic capsule, Directivity: Super-cardioid, Frequency range: 50 - 16,000 Hz, 10 Preprogrammed frequency groups, each with 10 channels, Auto squelch, Frequency scanning at the receiver, Adjustable AF out, 30 mW transmitter power, Infrared transmission setting from the receiver to the transmitter, Pilot tone, 80 kHz frequency grid, Modulation type F3E, LC-Display, 2x BNC connection for antennas, 2x XLR output, 1x Jack output (mono summed), Operates on 12V 1A DC power supply (+ inside), Dynamic hand-held transmitter with metal housing and LC display, Optional antenna converter: Art.#177448# (not included), Hand-held transmitter with 2 x AA batteries or rechargeable batteries, 9.5""/ 1U housing, Includes microphone holder, antennas, EU power supply unit, rack kit for mounting a receiver on 1U housing@+*Note:* In this frequency band a maximum of 2 systems (4 channels in total) can be operated simultaneously.@+@+