1. [Multi function display]: bright digital wooden alarm clock is easy to read, displaying date, time [12 or 24] and temperature, 3 alarm clocks are set, and the brightness is adjustable. 2. [Dual power supply]: mainly works when plugged in cable power supply or backed up by AAA battery (not included) (no energy storage function, no unplugged power cord). The charging cable is contained in the box. The cable is compatible with all USB chargers. The battery power supply should preferably be used for standby only. It is not recommended to use the battery as the main power source, as it will quickly drain the battery. 3. [Two control modes]: button control mode and voice mode (when the sound is greater than 60 decibels, the wake-up display is always on). Voice control mode is recommended when running on batteries. 4. [Small size] 100X70X40 (mm), just the right size. The clock bedroom can be used as a desk clock in offices, bedrooms, living rooms, etc. Because it can be powered by batteries or AC power, it is also a portable travel clock. 5. [Great gift] - The design concept of wooden clock is minimalism. It doesn't have too many buttons, but it gives you the most natural wood color appearance. You can give it as a gift to your friends or children to express your love and concern. Please refer to the instructions for function settings during use. If you do not understand, you can consult us online.