Tecsun X3 High Definition Speaker with Aluminum Case and built in FM radio and MP3 Player Black Color Aluminum Case,3-in-1 portable and rechargeable FM Radio, MP3 Player & Hi-Fi Speaker with Built-in SD card slot 1 1/2" full range driver delivers powerful, dynamic bass and distortion-free sound Built-in battery charger with included USB charging cable and earphone jack for private listening MP3 music player with built-in micro SD card reader (8GB maximum) Built in an aluminum case, Stylish design with compact size and lightweight