Bluetooth speakers

Bluetooth version: conwise3.0
Power amplifier frequency: 60 Hz ~ 20 k Hz
Horn frequency range: 80 hz ~ 18 KHZ
The speaker output power: 4.5 w * 2
Distortion: 0.5 or less
Signal-to-noise ratio S/N: 86 db or higher
Distance: 10 meters
FM frequency range: 87.5 ~ 108 MHZ
POWER CONSUMPTION overall POWER CONSUMPTION: 10 w.
Charging voltage: 4.8 v – 5.5 VDC
Operating voltage: 3.7 v – 4.2 vDC
Working current: 200 ma
Static electricity: > 1 ua
Battery capacity: 2200 mah
Antenna: built-in antenna