Tip:The wall clock relies on a connection to a power source in order to work, the batteries are only used to use the memory mode. ?What You Get?Digital Alarm Clock, Power Adapter, Power Cable, Product Manual. (If you have any problem with our digital clocks, please email us and we will respond quickly with a solution within 24 hours). ?Abundant Functions?The alarm clock has 3 levels brightness adjustment, 5 levels volume adjustment, snooze(9 mins), DST, and two USB output sockets, which make the alarm clock applicable to a wide range of scenarios. ?Dual Alarm Clock?The digital clock can set two alarms for different times and is easy to set. ?Special Light Combination?The alarm clock has 7 top light colors and 15 font light colors to choose from, so users can mix and match as they wish, and there are 105 light matching ways, enough for users to choose the light they need to decorate their space. Digital Alarm Clock?Simple and easy to use digital alarm clock, 6.45in size is just right for many occasions, can be used as a desk, bedroom, study and other places of decoration.