Driven by the latest Bluetooth 4.2 technology, our alarm clock radio speaker offers you ultra Hi-Fi audio even in a noisy environment. There are 2 USB output interfaces for charging your USB-powered electronic devices, such as mobile phone, tablet, etc. And you can insert a U disk into the second USB port to play the songs you like. With the easy-to-read 4-inch LCD screen, you can read clearly and easily. In addition, there are 4 brightness levels for you to adjust, meeting your different needs. Plug and play, no driver required, convenient to use. Besides, there is a battery installation position for the button cell, which can maintain the time and alarm settings in case of a power outage. Easy Operation & Ideal Gift: The clock has been designed with absolute simplicity in mind, and you will have no trouble using it. Exquisite digital clock with accurate time keeping for heavy sleepers, children, young people, students and the elderly.