Hi-Rice Portable Mini Digital Media Wireless Speaker with FM Radio USB Micro SD Slot Clock Display (White) Easily download audio file from your computer to Mini spaker by USB cable; Listening to music while charging for speakers Digital Arias Function, through a digital key input corresponding tracking number song. For example, Enter "12", you can directly jump to the twelfth songs after 3s 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 3.5mm headphones to listen the music so that it won't disturb people at night.