It makes the sound around the microphone into the FM radio and transmits out to achieve pickup and wireless radio FM transmitter.
Wide voltage range: 0.7-9V. Under the condition of 9V and use of 70cm , the distance is 50-100 meters in open space (depends on the actual environment).
88-108MHz frequency, more flexible to use in different situations.
Specifications:
Color: Green
Operating Voltage: 0.7V-9V
Frequency Adjustment Range: 88-108MHz
Transmit Distance: Under the condition of 9V and use of 70cm , the distance is 50-100 meters in open space (depends on the actual environment)
Relationship between Working Voltage (volts), Supply Current (mA) and Transmit Power (dBm):
9V, 24mA, 10.2dBm (that is, 11mW)
8V, 21 mA, 9.5dBm
7V, 19mA, 8.5dBm
6V, 17mA, 7.1dBm
5V, 14mA, 6.1dBm (about 5 mW)
4V, 12mA, 4.5dBm
3V, 9mA, 2.2dBm
2V, 6mA, -1dBm (about 1mW)
1.5V, 4.2mA, -4dBm (about 0.5mW, the general family environment is sufficient, small green radiation!)
1V, 2.4mA, -9dBm
0.7V, 0.9mA, -20dBm (that is 0.01mW)
Item Size: Approx. 3.5 * 1.5cm Celsius 1.38 * 0.59in
Package Size: Approx. 5 * 3 * 1cm Celsius 1.97 * 1.18 * 0.39in
Package Weight: Approx. 3g Celsius 0.11oz
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