Features: Easy to operate: Simply  connect your speaker with our device, immediately transform your speakers into a  fashionable wireless Bluetooth-compatible 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 compatible with iPhone, for compatible with 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. Included: 1 x USB Bluetooth-compatible Audio Music Receiver (Mbps) 1 x 3.5mm Audio Cable 1 x User Manual Easy to operate: Simply connect your speaker with our device, immediately transform your speakers into a fashionable wireless Bluetooth-compatible 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 compatible with iPhone, for compatible with Ipad, for iTouch and all kinds of smart phones. Portable design: with mini size, it can let you carry them to anywhere.