BT-X39

Bluetooth Speaker: V5.0+ERD                                 
  Function: phone call ,TF card, USB
Material: ABS+aluminum
Speaker: Ø45mm，4Ω/3W                
Frequency Response: 160Hz-18KHz/ 80dB        
Battery:  400MAH
Working Time:3H
Product Size: 97.5*47.3mm
Net Weight:189g