Classic Speaker B16

Material :Alumimum+ABS
Bluetooth Version:V 3.0
Frequency:2.402-2.480GHz
Max Power Output:3W
MIC Sensitivity MID:-32db
RF Range:10M
Charging:3.7V �C4.2V DC
Working Voltage: 4.8V C5.5V DC
Working Current: 200MA
Battery Capacity: built in 450MAH
Antenna: Built in
Line in: yes.
Charging Time: 2 hours
Playback Time: 4 hours
Unit size: 107*54*36mm
Color: red, black, blue, white