Dongguan Xuya Industry Co., Ltd.  

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TRANSMITTER:
1. Modulation system: VHF/RF
2. Modulation mode: FM
3. Range available: About 30m(with no interference)
4. Transmission frequency: 86MHz
5. Receive band: Frequency band"H": 84-88MHz
Frequency band"R": 88-108MHz

6. S/N ratio: About 50dB
7. Distortion: Less than 2%THD
8. Headphone frequency response: 30-20000Hz
9. Transmitter power supply: 3V 2*R3 AAA size seven battery
10. Receiver power supply: 3V 2*R3 AAA size seven battery