RY-990 is really divided into two hands

Receiver:
Frequency oscillation mode: PLL phase locked loop
Channel Group Number: Double Channel
Function display: LCD / LED
RF range: 500-980MHz
Modulation method: Fm FM
Available bandwidth: 200 MHz per channel
Number of channels: 200-300 channels
Frequency stability: ± 0.005 % PLL phase lock loop frequency control,
Dynamic range: > 110dB
Peak frequency bias: ± 45 KHz
Audio response: 60Hz -18KHz(± 3dB)
Comprehensive signal-to-noise ratio: > 105dB
Composite distortion: 0.5 %
Stable reception ≥ 150 meters
Transmitter:
Frequency range: 500-980MHZ
Band width: 50MHZ
Harmonic suppression: & GT; 55dBc
Frequency offset: + _ 48 KHZ
Frequency response: 50Hz -15KHz(-3 dB)
Signal-To-Noise ratio: & GT; 105dB(A)
Infidelity: & lt; 1 %
Battery requirements: AA type 1.5 Vx2 alkaline batteries