Microfone sem fio para gravação de karaokê portátil com bateria de lítio recarregável, receptor de frequência automática de 60 m para festa

Note : because of Logistics policy, the microphone not include battery Frequency bias: ±11kHz Frequency response: 80Hz-15kHz Frequency Stability: ±0.005% Signal-to-noise ratio: 60dB Distortion: 0.5% (1kHz) Number of channels: 2-channel Sensitivity: -70dB M Operating distance: 50m in open area Receiver power supply: DC 12V/320mA Transmitter power supply: No. 5 battery Transmitting power: 20mW Frequency range: 200MHz-270MHz Output mode: independent and mixed automatic selection Transmitter. Frequency stability: ±0.005% Carrier output power: ≤30mW Spurious radiation rejection: 40dB Modulation mode: vhf Maximum modulation system: ±75KHz Pickup mode: moving coil type Receiver: Receiving sensitivity: 2μV Mirror rejection: 40dB Audio output impedance: 600Ω Audio output level: 0-0.5V Use of power supply: AC220-240V 50/60Hz Power consumption: 1W