X Bluetooth Speaker, best Bluetooth Speaker, mini Bluetooth speaker, base Bluetooth speaker Dual-Machine Coupling Function Speaker: 40mm 40 3W Battery capacity: 800mAh Input: 5V=: 200mAh Bluetooth distance: 10 meters Working voltage: DC5V Playing time: about 4 hours Product size: 5.0*5.0*3.6CM Product weight: about 125g
