- 2 Channel Digital Multi Frequency Professional Wireless Microphon - Anti Feed Back Function - Alumunium Box Packing Type - Frequency Range UHF 500-600 MHz / UHF 600-680 NHz / 850-950 MHz - Digital Modulation Mode : pi/4DQPSK - Number of Frequency : 800 - Occupied Bandwith : 300 KHz - Transmission Rate : 204.8 Ksps - S/N : 90 dB - Frequency Response : 50-15 KHz - Transmit Mode : Audio and Data using encrypted digital Transmission. - Capsule : dynamic - Transmitting Power : < 10 dBm - Frequency Stabilization : +/- 0.005 % - Battery : Two Pieces Batteries of 1.5 V (AA) - Cover Range : within 80 meters is the Most Ideal - USB 5V input power supply - 2 Balance XLR output socket - Mix output : 1/4" unbalanced output