Wireless Portable Bluetooth Mini Speaker:
Metal Shell
Support TF card
AUX-IN (3.5mm line-in socket)
Support different audio formats
Transmission range upto 15m
Several colors optional or customized
Parameters:
Size: Dia. 59.5mm X 58.5mm
Net weight: 245g
Frequency response: 100Hz-18 kHz
Input sensitivity: 500mV
S/N: 85dB
Output power: 3W
USB power: DC 5V
Channel: single channel
Continuous playing time: 4 hours
Charging time: 2.5hours
Power: passive