[Customer Services] 2 years warranty. If you have any quality or use problems with our products, we will replace it with a new one for you, or guide you to use and set it, please just send us a message immediately. [Power Supply] -The 3D digital clock is only powered by AC adapter (not included): 5V/1A. - 3 m USB power cable (included). -Built-in super farad capacitor: only used for time memory with approx. 2 hrs after power failure, not for regular power supply. [Cute Alarm Clock with Snooze] This large number digital clock also got the alarm function with snooze, just set the alarm time by the remote control easily, the alarm will ring for 1 min, and then it will allow 5 mins snooze time (3 times) and ring again. [with Remote Control] Just set this digital LED clock by a remote control to adjust the 12/24 hrs datetime, brightness/Auto brightness, alarm clock, easy to use. (Included CR2025 button battery is for the remote control). [Night Light Wall Clock] The modern digital clock shows the date, time, temperature(?/?) and adjustable night light, this cool wall clock was built-in light sensor with 8 levels of automatic dimming according to the ambient light, beside you can also adjust the brightness manually by the remote control with 3 levels dimming (High/Medium/Low) as your needs, it is clear and big enough to be visible at night or long distance. [9.7" big digital clock] The white wall clock can be used as a desktop clock alarm for bedroom with desktop bracket, and also may be widely used in Living Room, Kitchen, Gym, Hotel, Office, Meeting Room, Classroom and so on. It is a super nice and cool unique decorative clock for wall and bedside alarm clock, size: 9.7x3.9x0.9 IN (142 g), big enough, easy to read.