400M-470MHZ UHF FM Transmitter UHF Wireless Microphone Pickup Radio Experiment For Monitor Walkie-talkie Receiver Amplifier

UHF / NFM transmitter module
The default frequency is 409.6MHZ. The module works in NFM FM narrowband mode
(the same as ordinary analog walkie-talkies). Single frequency transmission sound quality is clear. Small size, long transmission distance.
Operating voltage range: 1.8V-4.2V
Power supply :3.7V single lithium battery
Module size: 1.9X0.83cm
Working current :<18MA
Modulation mode :NFM
Transmit power :<13DBM
Reference transmission distance :300-1500 m (depending on the environment)
Suitable for wireless voice and audio transmission, security, maternal and child monitoring, etc.