BT-X41

Bluetooth Speaker: V4.2+ERD

Function: phone call ,TF card, USB
Material: ABS+aluminum
Speaker: Ø52mm，4Ω/3W  Bass diaphragm               
Frequency Response: 65HZ-100HZ/ 80dB        
Battery:  300MAH
Working Time:3H
Product Size: 123*43*73mm
Net Weight:185g