Main features: - Multipurpose design: This mini item mainly plays three roles: digital alarm clock, Bluetooth speaker, and radio. With the mini and lightweight design, you can take it with you anywhere and anytime without any hassle. - Dual USB ports: There are 2 USB output interfaces for charging your USB-powered electronic devices, like cell phone, tablet, and so on. And you can insert a U disk into the second USB port to play the songs that you like. - Radio function: This digital tuning radio allows you to wake up from the broadcasting radio and fall asleep from your favorite radio station, an amazing experience. - Super sound quality: Driven by the latest Bluetooth 4.2 technology, our radio alarm clock speaker provides you with the ultra Hi-Fi audio even in a noisy environment. - Plug and play: Plug and play, no need for any driver, convenient to use. Besides, there is a battery installation position for the button cell (included), which helps maintain time and alarm settings when the electricity fails. - Backlit LCD screen: With the 4 inch easy-to-read LCD screen, you can read clearly and easily. Plus, there are 4 levels of brightness for you to adjust, meeting your different needs. Specifications: - Bluetooth version: 4.2 - Input: 100 - 240V, 50/60Hz - Output: DC 5V 2A - FM frequency range: 87.5 - 108MHz - Audio cable: about 100cm - Adapter cable: about 125cm