Portable Bluetooth Speakers , CINEYO(TM) Portable Mini Bluetooth Speakers Wireless Smart Hands Free Speaker with Fm Radio Supports Micro Sd Card with build in Microphone, Works for Iphone, Ipad Mini, Ipad 4/3/2, Itouch, Blackberry, Nexus, Samsung and other Smart Phones and Mp3 Players Wireless Bluetooth Speaker Support Answer Calling and TF Card,Support Mobile Phone/Laptop/Tablet PC With USB And micro SD/ TF card slot, you can play mp3 / mp4 format files in the USB Flash Disk /Micro SD card Built in rechargeable battery , charged by computer via USB interface, ompact and portable, convenient to carry and use it indoor or outdoor. Support Hand-free when answer calling (with MIC)