Features: 
Easy to operate: Simply  connect your speaker with our device, immediately transform your
speakers into a  fashionable wireless Bluetooth speaker. 
Wireless play: Removing troubles of wired connection, through the wireless connection and
transmission, the user can enjoy a high fidelity music at any place indoor by wireless control. 
Perfectly compatible: Our products can be compatible with nearly 95% of mobile phone or
computer on the market. 
Support for iPhone, for Ipad, for iTouch and all kinds of smart phones. 
Portable design: with mini size, it can let you carry them to anywhere. 

Specifications: 
Support A2DP V1.2 
Power by: DC 5V 
Transmission rate: 3Mbps 
Transmission distance: ≥10m 
Power supply mode: USB-Power 
Interface: 3.5mm USB 
Audio Cable length: approx. 30cm/11.81'' 
Product size: approx. 54*20*10mm/2.12*0.78*0.39'' 
Package size: approx. 132*98*20mm/5.19*3.85*0.78'' 
Weight: approx. 8g 

Note: 
Due to different producing batches, product details might be a little different.
If you minding the difference, please buy it carefully. 
Please allow 1-3mm differs due to manual measurement.