B99 Portable Outdoor Portable Bluetooth Speaker

Product information:
Bare metal size: 346 * 126 * 190mm
Fm frequency: 87.5-108MHz
Speaker: 3Q10W 3-inch external magnet
Output power: 2 * 10W
Charging input: DC 5V 1A
Battery: 3.7V 1500mAh
Frequency response range>80Hz-18KHz
Channel: 2.0CH
Signal to noise ratio:>80dB
Power mode: USB
Bluetooth version: 5.0