Dual wireless handheld microphones for entertainment KTV LV909
Key Word ：
Digital Public Broadcasting System
Two-Channel Wireless Microphone for KTV
Features:
1. Equipped with one-touch automatic idle frequency scanning function and one-touch lock button function
2. Volume control with high-quality potentiometers for simple and convenient matching
3. Clear and bright sound quality; ideal operating distance of 80 meters
4. 200 selectable frequency points; supports simultaneous operation of up to 50 units. Compatible with handheld microphones, bodypack transmitters and conference scenarios with strong anti-interference performance
5. The transmitter features an LCD screen displaying channel number and battery level; the indicator flashes when the battery is low, and the unit automatically shuts down when voltage drops to 0.5V
6. Suitable for large and small stages, conference halls, KTV rooms and other scenarios
System Specifications:
Frequency Range: 640-690 MHz
Modulation Mode: Wideband FM
Adjustable Frequency Range: 60MHz
Number of Channels: 200
Channel Spacing: 200KHz
Frequency Stability: Within ±0.005%
Dynamic Range: >105dB
Maximum Frequency Deviation: ±45KHz
Audio Frequency Response: 40Hz-18KHz (±3dB)
Overall Signal-to-Noise Ratio: >110dB
Total Harmonic Distortion: ≤0.2%
Operating Temperature: -25℃~+40℃
Receiver Specifications:
Receiving Mode: Double-conversion superheterodyne
Input Power: 5W
Intermediate Frequency: 1st IF: 110MHz, 2nd IF: 10.7MHz
Wireless Interface: BNC/50Ω
Sensitivity: 12 dBμV (80dB S/N)
Sensitivity Adjustment Range: 10-32dBμV
Spurious Rejection: ≥95dB
Maximum Output Level: +10 dBV
Transmitter Specifications:
Antenna Type: The body-worn transmitter adopts a 1/4-wavelength whip antenna; handheld microphone with built-in antenna
Output Power: 20mW
Spurious Suppression: -60dB
Power Supply: Two AA batteries
Operating Time: Approximately 8–10 hours
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WEISHITE Audio Technology (Guangzhou) Co., Ltd
Address: 5th Floor, No. 11, Area A5, Lixin Road, Huimei New Village, Xintang Town, Zengcheng District, Guangzhou City
E-mail ：caoyaoyu@gztsaudio.com
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