Hi-Rice Portable Mini Digital Media Speaker with FM Radio USB Micro SD Slot Clock Display for iPhone / iPad / iPod / MP3 Player / Laptop / Tablets (Black) The audio of the computer can be transmitted to the mini speaker by USB cable. Listening to the music while charging for speakers. Digital song, according to the song name to select a song number for inquiries. For example, the song will be play when you press some key that stands for one song after 3 seconds. FM Radio. The sling is used as antenna, which is convenience for you to channel search. Clock Function,LED display,so you can look at the time on the LED display You can use headphones to listen the music so that it won't disturb people at night.