Bluetooth solution: JL4.1
Speaker: 3W
Battery: 3.7V 400mAh
Receiving distance: 10 meters (range depends on the environment)
Charging time: 2-3 hours
Play time: 2-2.5 hours
Frequency response: 50HZ-20KHZ
Signal to noise ratio: ≥90db Shell
material: ABS plastic + plating
