TOPEPOP Car Charger Bluetooth Speaker Car Kit Wireless FM Transmitter Mini Stereo MP3 Player Handsfree Calling Built-in Microphone for Portable Headphones Car Speaker Easy To Operate:Simply connect your car speaker with our device,immediately transform your car speaker into a fashionable wireless bluetooth speaker Support for Bluetooth A2DP Featuer, you can play high quality music directly after the phone connected to the car kit via bluetooth function, and the car kit frequency is matched to your car speaker Build in microphone, you can make call and set free your hands, safe and convenient when you are driving. Support Aux output, amazing audio enjoyment.It can match any bluetooth enabled devices, such as mobile phone, laptops, iPad, speaker and Bluetooth audio transmitter. Portable Design:With mini size,the feature of portable can let you carry them to anywhere you want