Bluetooth name: KILBURN III
Output power: 2*5W
Speaker specifications: 52mm 4Ω5W
Battery capacity: 1200mah
Working voltage: DC 3.7
Charging voltage: DC 5V
Bluetooth version: Jerry 5.1
Input sensitivity: 400.
Separation: 90db
Signal to noise ratio: 80db
Bluetooth receiving distance: 15m
Playing time: 2-5H
Charging time: ≥2H