Sound pick-up:Condenser microphones
Reverberation mode: Echo reverberation
Bluetooth version:V5.0+EDR
Frequency Response :2.402G-2.480GHz
Receive sensitivity(TYP) :-85dB
Signal-to-Noise Ratio:≥80dB
Distortion:≤3%
Speaker output :8W
Speaker Specification:52mm 4Ω/8W
Frequency Response:100Hz-18KHz
Charging Voltage:5V/1A
Battery capacity:2000mA/3.7V
Product size:215*9.5*7.5mm
Single NW/GW :382g/540g
Audio Input :bluetooth、line in
Gift box size :258X130X86 MM
Packing :K=K 54X45X28.5MM
GW:12.0KG/20PCS