Integrated  technical parameters
• Frequency range: 740-820 MHZ
• Band width: 80 MHZ
• Modulation mode: FM
• Maximum frequency deviation: ±50 KHZ
• Frequency response: 40-16000 hz
• Dynamic range: > 105 dB (A weighted)
•  T.H.D:≤ 0.5%  (@ 1 KHZ)
• Audio processing method: dynamic compression expansion technique

• Operating temperature: 0 ℃ to + 50 ℃
Receiver
• Receiver channels :dual channel
• Oscillation mode: PLL 
• Audio Output Level: 0-300 mV
• Audio Output Impedance: 600 Ω
• Image Rejection:≥ 85 dB
• Power supply: DC 12-16 V/ 400 mA
Transmitter
• Oscillation mode: PLL 
• Frequency stability: ≤±10 ppm
• Maximum modulation: ± 50 KHZ
• Maximum output : 30 mW (in accordance with  national radio regulations)
• Maximum input sound pressure: 130 dB SPL
• Harmonic radiation: < - 55 dBc
• Using batteries: 2 AA batteries