Description
UHF Wireless Microphone for Child Monitoring UHF FM Transmitter and Receiver Mini Walkie-talkie UHF Radio Microphone
Product Description
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Round module
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Use button 2032 battery Supported battery model: CR2032 LIR2032
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Square module （default sent）
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14mm long and 6mm wide
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Working frequency
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uhf (400MHZ-470mhz)
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Working method
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FM
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Working voltage
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It can be between 2 and 4.2V DC
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Working current
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3.6V power supply current about 15ma
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Working time
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Round module uses CR2032 coin cell battery for continuous work for about 24 hours
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Reference distance
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500-1000 meters in open ground (distance varies with voltage)
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Product application
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Treasury on duty, security.
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Antenna length
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17 cm
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About launch distance:
500m-1000m is the actual test in open areas, but the longer the distance is, the weaker the signal, noise,
dead angle, etc. are not excluded. Different conditions such as transmission voltage, electromagnetic environment, usage, and obstacle blocking will also affect the transmission distance to different degrees.
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Square Module
Working frequency: near 415mhz Receiving method: UHF band radio or full-range radio must be used for reception. The radio must have a screen and the frequency can be set individually. Receiving settings: The stepping frequency of the two-way radio must be set to 5khz or 10khz. If you do not understand, please refer to the two-way radio instruction manual or consult the two-way radio seller. Working current: 3V-4.5V power supply 18-20ma, very power saving. Audio performance: Because the UHF module uses audio compression technology (narrowband modulation), the sound quality is similar to that of an ordinary walkie-talkie, but without the FM transmitter module, the sound quality is good, the advantages are power saving and long distance, and short antenna. Transmitting antenna: 14cm long thin single wire, copper wire, enameled wire and so on.Use
This product can be used to replace wireless microphones, walkie-talkies, and telephones. Can be used for: stage performances, lectures, teaching, conferences, conference recording, mother and baby monitoring, patient monitoring, construction site intercom. Widely used: long-distance, long-term real-time communication between multiple agencies, voice walkie talks, etc.
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