Product Description

Product Description:
power bank (Bluetooth Speaker with dual Built-In Bass Wireless Bluetooth Connectivity)

Bluetooth speaker with 4000mAh power bank Technical Speciffications
Bluetooth solution: 3.0+EDR
Transmission distance: 10 meters
Output power: 2-3W
Material: ABS+metal
Product size: 220*50mm
Frequency range: 100Hz——20KHz
Barrery can be used repeatedly for about 500 times.
Battery should be charged 2 hours at least
Aduio dock could be charged in PC with USB Cable, or by a charger.
Power input: DC 5V
Net weight: 272g

Stereo wireless Bluetooth speaker with 4000mAh power bank
Bluetooth 3.0 +EDR international standard, you can adjust the volume directly through the stereo, 10meters high-fidelity transmission with nondestructive, super portable, shock sound, specially designed for smart phone and table PC

Supports speakerphone
Support speakerphone, Built-in microphone, to bring clear calls for you. It`s very perfect either with single or multiplayer for phone calls or video chat.

Lasting power along with the power bank function
Lasting power, long battery life, medium volume with 20 hours of playback capability, suitable for any occasion., built-in Li-ion battery cell has 4000mah power capacity enough for your music playing extra power supply for your mobile phone whenever you phone need power support

4000mAh power banks' pictures show