Porodo soundtec duo mic aluminum rechargeable wireless microphone - black
highlights
battery: 3.7v, 800mah ×2
working time: 4.5h
charging time: 5h
receiving distance: 25m
s/n ratio: ≥90 db
frequency range: 20hz-20khz
frequency: 2.3ghz/2.4ghz/2.5ghz
regulating methods: dsp
number of channels: 2
polar pattern: unidirectional
audio sensitivity: 92dbm (receiver), 52±3db (mic)
signal intensity: +10dbm
frequency steady: ±10ppm
impedance: 600ω ± 10%
connectivity: wireless transmission
connector type: 6.3mm mono plug
compatible devices: karaoke machines, audio systems