• Digital wave guide technology effectively solves the crosstalk problem
• UHF frequency, PLL design
• 100×2 channels, 250KHz interval；
• Double superheterodyne design, high receiving sensitivity
• The mute circuit effectively reduces ON/OFF noise
• Infrared matching function
• Microphone operation time approximate 6-10h
• Voltage boosting design keeps the microphone performance during low voltage
• The microphone automatically mutes after being unholded by hand for 3 seconds, and stands by for 5 minutes, and powers off for 15 minutes

• Frequency Range: 645-693MHz
• Frequency Stability: ±10ppm
• Channel Quantity: 100×2
• Frequency Response: 40Hz-18KHz
• Distortion: ≤0.5%（at 1KHz )
• S/N Ratio: ≥110dB
• Receiving: double superheterodyne
• Modulation: FM
• Transmission Power: 3-30mW
• Receiving Sensitivity: -95~-60dBm
• Receiving Range: 100m (ideal environment in room)
• Transmitter Power Supply: two AA batteries
• Receiver Power Supply: DC 12V
• Power Supply Consumption: ≤10W