Lighting DFI Wireless DMX Receiver Frequency-Agile 2.4Ghz Wireless DMX system with 512 channels and 7 groups Input Voltage: AC100/240V, 50/60Hz; Work Voltage: 5VDC@500 mA Frequencies: 126 frequency band  Selects strongest channel automatically # of units: up to 7 units can be set on an ID address Effective Range: 500 Meters; Max. Emit Power: 20dBm; Receive Sensitivity: -94dBm