BILIFUN Portable Wireless Bluetooth Speaker with Superior Sound ,Enhanced Bass ,12 Hours Playtime,with Built-in Mic, FM Radio,MP3 Alarm Clock,Black BUILT-IN 2*3.5W ACOUSTIC DRIVERS, surprisingly LOUD for its size, the BILIFUN wireless Bluetooth speaker has outstanding, clear, and full-range sound, perfect for use anytime OUR BILIFUN BLUETOOTH SPEAKER BUILT-IN FM RADIO,which allows you to listen to local radio stations, supports frequencies range: 87.5-108 MHz. Built-in microphone for hands-free speaker phone calling BUILT-IN RECHARGEABLE BATTERY for up to 12 HOURS of PLAYTIME. With LED display and alarm clock function, support Micro SD card and TF card insert and play 3.5MM AUDIO LINE IN and USB INPUT ACCEPTABLE. Support MP3, WMA, WAV, APE and FLAC format THE DEVICE WIRELESSLY CONNECTS VIA BLUETOOTH V3.0 Technology at a distance of UP TO 32 FEET/10 METERS. Works with any Bluetooth-enabled smartphones, including IOS (iPhone) & Android, tablets, iPad, laptop or MP3 players