Product Features: Make your Car AUXaudio sytem and Home Theater AV HiFi Surrounding system become bluetooth compatible, get music from Bluetooth enable device such as iPhone, iPad, iPod, HTC Samsung Smart cellphone or Bluetooth PC, Laptop. Simply connect this bluetooth audio receiver to your line-in or auxiliary input on your speakers, pair it to your Bluetooth enabled device, and enjoy the wireless music revolution. Whether you want Bluetooth convenience in your car, through your home-theater system, in your kitchen, bathroom, or bedroom, etc. Simple operation, 3.5mm Male to Male Audio Connector or 3.5mm Male to Male Audio Cable to connect the speakers and the receiver. High-performance AMP chip, can push the headset, and high-power speaker, applicable to all types of speakers. Powerful bluetooth IC, More stronger compatibility. Powered by built-in rechargeable li-ion battery via mini USB port, long working time and low consumption. (Mini USB cable included). You can play music through your car stereo and answer phone call via the built-in Mic. Sleep mode for energy saving. High-performance, support A2DP V1.2 stereo profile. Specifications: Dimension: 55mm(L) X25mm(W) X10mm(D) or 2.17" X0.98" X0.40" (Approx.). Bluetooth: v4.0andEDR Support Bluetooth hands-free function. Bluetooth stereo audio profile: A2DP. Transmission Distance: up to 10m. Operation time: up to 8 hours. Frequency: 2.4GHz. 3.5mm stereo audio output. Wireless music receiver connects to 3.5mm headphone jacks. Use with home stereos or speakers, car stereos, headphones etc . Color: Black. Weight: 1.23oz(35g). Label: Yes Package Includes: 1 X Bluetooth Music Receiver. 1 X Micro USB Power Cable. 1 X 3.5mm Audio Connector. 1 XUser Manual. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.