H-8500Wireless towed second-hand holders

Product description

1. Infrared automatic frequency matching, double large screen design, host function at a glance,
2. Hand-held microphone coloring process, no paint, no color fading, delicate hand feel, high-grade, atmospheric, simple operation.
3. Equipped with special microphone core, clear speech, wide audio frequency.
4.120 channels (channel A 1-60, channel B 61-120), no serial frequency and no frequency loss when using multiple sets.Can be used in the same occasion 50 sets, especially suitable for KTV rooms, conference rooms, school classroom projects, municipal bidding projects.
5. Use multiple noise control circuits on the receiver to effectively prevent interference from external signals.
6. No switch impact sound to ensure the safety of the rear amplifier and speaker.
7. Both the transmitting handheld and receiving hosts are equipped with LIQUID crystal display (dual screen), and the handheld LIQUID crystal display makes the working state clear.
The radio frequency range: 640-830 MHZ modulation mode:Digital frequency modulation bandwidth available:Each channel 30 MHZ channel number:Infrared automatic frequency 120 channel frequency stability:Plus or minus 0.005% dynamic range:> 110 db peak frequency deviation:Plus or minus 45 KHZ audio response:60 hz - 18 KHZ (plus or minus 3 db) comprehensive signal-to-noise ratio:> 105 db comprehensive distortion:< 0.5% receiver mode:Secondary superheterodyne intermediate frequency: the first intermediate frequency: 110 MHZ second intermediate frequency:10.7 MHz antenna interface:BNC sensitivity:12 db noise threshold (80 DBS/N) :0 to 40 db stray inhibition:> 80 db audio output: non equilibrium: + 4 db (1.25 V) / 5 k Ω balance:+ 10 db Ω power supply voltage (2.5 V) / 600:DC11-16 v (rated12V) current:Single receiving, less than 200 ma, double receive, less than 350 ma range: 30 meters or more

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