Item Type: Alarm Clock Material: ABS Product Size: Approx. 15.2 x 7.7 x 3.7cm / 5.98 x 3.03 x 1.45in Battery Parameters: 18650 Lithium Battery, 1500mAh (Built-in) Input Voltage: 5V 1A Working Current: 30MA Display + Night Light Current: 95MA Music Ringtones: 18 Alarm Clock: 2 Groups Function: Memory function, no need to reset after power off Package List 1 x Alarm Clock 1 x USB Cable 1 x English Manual 1Snooze Function: When the alarm sounds, just press the "Snooze" button to sleep for 5 more minutes. Avoid oversleeping, very suitable for awakening sleepy people. 2Intimate Design: There are multiple function buttons with icons and text on the back of the alarm clock, equipped with night light effect, you can easily observe the time at night. 3LED Digital Display: Easy to read, 12/24 hours and / display optional. The brightness is adjustable, which can be adjusted to comfortable brightness and save energy. 4Family Applicable: Suitable for children, adults, and the elderly, and also an artifact for students and office workers to get up in the morning. 5USB Power Supply: This digital alarm clock with a USB interface can be charged or powered off, so you dont have to worry about power issues.