Exclusive first wireless switch accompaniment function Features: � exclusive first wireless switch accompaniment function � large screen high-definition display, 1.5U chassis � a key seconds to turn, professional singers accompanied by the whole 1. System characteristics Channel: 70 * 2 = 140 Frequency range: 600-800MHz Frequency response: 30Hz-18KHz ± 0.5dB Sensitivity: 100dB Distortion: 90dB Effective use of distance:> 50 meters Note: The effective range depends on the RF signal absorption, reflection and interference. 2. transmitter Transmitter power: 5-30mW Oscillation mode: PLL Modulation: FM Mirror control:> 50dB Frequency offset: �75KHz Power supply: DC-1.5V * 2 3. Receiver Sensitivity: 2.0μV Oscillation mode: PLL Signal to noise ratio:> 90dB Output: balanced output * 2, unbalanced output * 1 Power supply: AC100-240V DC12V 1000MA