the t.bone free solo HT 1.8 GHz, UHF Wireless System, 1.8 GHz radio system with dynamic handheld transmitter (cardioid), 1 user bank with 16 memory presets, Adjustable squelch with threshold display at receiver, Frequency scanning in the receiver, Adjustable AF out, Infra Red Transmission setting from receiver to transmitter, Pilot tone, 25 kHz grid, Up to six 1.8 GHz Free Solo spark gaps in parallel, 9.5"" 1U enclosure with 2x BNC output for antennas, XLR and jack output, Operation with 12V 0.5A DC power supply (internal), Dynamic handheld transmitter with metal casing, LCD display, Powered by 2x AA batteries (not included), Frequency band: 1785 - 1800 MHz, Transmitting power between 5 mW, 10 mW and 20 mW selectable, (With 2x AA 1.5V batteries) Battery life > 8 h, Frequency response 60 Hz - 15 kHz, Sensitivity -102 dBm, Dimensions receiver (W × D × H, without antenna) 212 × 160 × 44 mm, Receiver weight 900 g, Dimensions Transmitter (L × D) 246 × 53 mm, Transmitter weight 250 g, Incl. plastic case and Rack mount, Matching microphone holder: Article Nr. #288991# (not included), Optional antenna converter: Article Nr. #177448# (not included)