Output power: 100mW
Audio Frequency range: 50Hz-18 KHz
Transmission frequency: 87.0MHz-108.0MHz
Frequency step: 0.1MHz / second (short key press), 1.0MHz / time (long button press)
Equivalent noise: ≥30dB (sound close to CD quality)
Supply voltage: DC 3.0V-5.0V
Working Current: 35mA
Transmitting antenna: 75cm telescopic antenna
Transmission Distance: with 75cm standard telescopic antenna cover a radius of 100 meters measured. (Note: The transmission range is for reference only, because the use of the environment is slightly different)