Features: The Bluetooth receiver can connect two mobile phones at the same time. Support for iPhone, for Android phone, other smart phones which with Bluetooth A2DP function. Compatible with home stereos, speaker, car stereos, headphones that is with 3.5mm audio input. Mini size design the feature of portable can let you carry them to anywhere you want. Suitable for office, home and car use. Descriptions: Built-in microphone for hand free call. Powerful Bluetooth IC, CVC6.0 noise cancellation, high quality sound, more stronger compatibility. Easy to operate, simply connect your speaker/headset with our device. Specifications: Bluetooth: 4.1 Wireless distance: 10m Material: plastic Size: 6.7*2*2cm Color: black, white Package included: 1 x Bluetooth Receiver 1 x Adapter Notes: 1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2.Due to the manual measurement and different measurement methods, please allow 1-3cm deviation.Thanks!