BBS One-to-two handheld microphone

System specifications: Frequency range 640-690MHz;
The total number of channels is 200CH; the effective distance is ≈50m;
The frequency interval is 250KHz; the frequency width is 50MHz.
Receiver: Signal signal-to-noise ratio ≥50dB;;
Frequency stability ±5Kz; reception mode CPU controlled signal selection + pilot identification reception
;Mute mode Mute & Lock loop Circuit;Display mode LCD;
Power supply 12V DC, 1250mA; audio output interface 2 XLR Balanced Socket + Unbalance TRS 6.3mm Socket.
Launch board: frequency oscillation mode PLL phase-locked frequency synthesis; handheld power ≤30mW; launch mode CPU controlled carrier wave generation + pilot identification code generation; frequency stability ±4KHz; display mode LCD + color backlight screen; capsule type moving coil type; Level 2 power is high and low.