Sports wireless speaker

Wireless connection: Bluetooth 4.0
Active passive: active
Power supply: built-in 1200mAh lithium battery
USB power adapter above DC5V-500mA
USB specification: USB2.0, compatible with USB1.1
Frequency response: 80Hz. 18KHz
Speaker type: portable bluetooth speaker
Speaker system: mono
Speaker unit: 1.5 inches + extra large lace
Suspended Siamese Passive Radiator
Adjustment method: button.
Output power: 42 3W
Product size: 86x97x38mm