[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 led wall 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. [3D LED Clock] 3D wall clock design makes your home fashionable, the digital part emerges in 3D, this modern wall clock looks cool and cute, and this led clock is suitable for Bedroom, Living Room, Kitchen, Gym, Hotel, Office, Meeting Room, Classroom and so on. [Alarm Clock with Remote Control] To set this digital alarm clock by a remote control, include alarm, 12/24 hrs time, date, 3 levels of manual brightness/Auto brightness, easy to operate. Beside the alarm is with snooze function, you can get extra 5 mins snooze time (3 times) and then the will ring again. (Included CR2025 button battery is for the remote control). [Big Wall Clock with Adjustable Light] This is a wonderful white digital clock with night light of dimmable brightness, you may set the brightness of this digital led clock for High/Medium/Low/Auto/Off by a remote control as your needs, in addition, for the auto dimming, it will be 8 levels of automatic dimming by the built-in light sensor according to the ambient light, the adjustable brightness will make you read it clearly in strong light or dark night. [15" Large Led Clock] Large digital wall clock shows the date/time, temperature(?/?) and adjustable night light, it is clear and big enough to read the time at night or long distance. Big clock size: 15.0x5.1x0.9 IN (340 g), easy to read, no matter in the dark night or strong light, you can still read the time easily.