CiDoss Wireless In-Car Bluetooth FM Transmitter with 2-Port USB charging, Music Controls with Hands Free Calling MP3 Player This is a new Bluetooth Hands-free FM Transmitter Car Charger; it can play MP3 music from your cell phone with 3.5mm audio cable but will also support a USB flash drive or a micro SD card. Built-in microphone: which allows to you to receive a phone call all while still remaining to drive safely. Wireless remote supports 3 main operating systems: iOS / Android / Windows. It is also compatible with Smartphone's, tablets, Samsung Galaxy tab, iPad, Google nexus, and much more. Works with all Bluetooth enabled devices, it even supports laptops. The function keys on the unit allows for playback, adjusting the volume, search, and a lcd screen with a screen lock. Remote with a very durable construction can be used more than 3 million times continuously. Adapting with professional-grade Bluetooth module