Program: Bluetrum 5.0
Frequency response range: 200Hz-20KHz
Signal to noise ratio: >=85db
Support functions: TF, FM, USB, BT, 1+1
Battery: 18650 battery 1200MA
Horn diameter: 50mm
Speaker power; 4Ω5w
Charging voltage: DC 5v
Charging time: about 5h
Working time: 2-5h
Outer box size: 38*32.5*50cm
Packing quantity: 100 pcs