Specification: 

1 Wireless Technology: Bluetooth 3.0 + EDR 

2 Transmitting Frequency: 2.4G Hz 

3 Transfer Range: 10M (the distance depends on the bluetooth device and environment). 

4 Power Supply: DC 5V/ 100-120mA 

5 Output: 3W 

6 Battery: 3.7V 400mAh lithium 

7 Charging Time: 3 hours 

8 Working Time: 6 hours 

9 IPx4 Grade Waterproof 

10 Color:Blue /Rose red /Green/ Yellow with Retail Box + Black / White without Retail box 

11 (Please choose color you want, ,if not we will send Green one with Retail Box ) 

12 Dimenisons: 3.5 x 2.0 inch (Dia. x H) 

13 Net Weight: 3.8 oz    

Compatibility:  1 - for iPhone 5S/ 5C/ 5/ 4S/ 4/ 3GS/ 3G  - for iPad 1st, 2nd, 3rd, 4th, iPad Mini  - for iPod Touch 4th/ 5th/ Nano 7  - for Sony Xperia L36h L36i Z Ultra XL39h Z1 L39h  - for Samsung Galaxy S1 S2 S3 S4, Note 1/ Note 2/ Note 3, Tab Series  - for HTC One M7 Desire X Series S V  - for LG Lumia 800 820 900 920  2 All of devices which have the Bluetooth Function, such as Tablet PC, Laptop, PSP, TV, Computer, etc.