Listen Technologies LT-803-072-01 High Power Stationary 3-Channel RF Transmitter (72 MHz), Dark Grey with White Silk Screening, Transmission Range Up to 305 m (1000 ft.), Look & Listen LCD Display For businesses or venues requiring anywhere from one to three channels of assistive listening audio, the LT-803-072 Stationary 3-Channel RF Transmitter is an excellent choice. Universal inputs allow for the use of nearly any audio source including mixers, micrphones, MP3 players, and more, and our signature Look & Listen LCD display provides immediate information about channel, lock, and RF power.Key Features Three-channel design makes it simple to install, manage, and use 100% digital audio transmission for solid, reliable signal Look & Listen LCD display Works with any audio source on the market 30-day, no-obligation demonstration available for your venue Compatible with a wide range of Listen Technologies accessoriesSpecifications LCD: Channel Designation, lock status, RF power level (front panel) Audio Input Status LEDs: Indicates Input 1, Input 2, and Mix audio levels; 10 segment LED's (8 green, 2 red) RF Power: Indicated on the LCD (low, mid, high) Frequency Range: (A) 72.100, (E) 72.900, (H) 75.900 Number of Channels: 3 wide band Frequency Accuracy: ± .005% stability 0 to 50ºC Antenna Type: Compatible with Listen technologies' LA-101, LA-106, LA-116, LA-122, LA-123, and LA-125 BNC antennas (Sold Separately) Transmitter Stability: 50 PPM Transmission Range: Up to 305 m (1,000 ft.) Output Power: 80,000 uV at 3 m Power Supply Input: 100-240 VAC, 50-60 Hz, 0.4 A Power Supply Output: 12 VDC, 1.3 A, 15.6 W Dimensions: 8.5" x 1.75" x 9.13" Weight: 4.5 lbs.