3.5" Alarm Clock Modern Digital LED Display Desk Clock Alarm Snooze Voice Control Timer Alarm Clock Features: Easy to read: The extra large screen features enlarged numbers making it easy to read even in a long distance. This is an essential feature for the elder or people with vision impairment A variety of charging ways: This alarm clock can be powered by USB cable and AAA batteries, both of them are easily available (batteries are not included) Alarm clock function: This alarm clock easy to set a time that wakes you up every morning. This alarm clock helps you get rid of the bad habit of sleeping late Snooze function: press the SNOOZE button and the alarm will go off and ring again in 5 minutes later. SNOOZE function can be used repeatedly within 2 hours, really suitable for your weekends Voice control: when the clock is powered by batteries, the digits display will last for 6 seconds when the sound reaches over 70dB. But when connected with USB, the clock is in the ON state so that the voice-control mode is unavailable Great for desktop use: This alarm clock has a kickstand to allow it to sit on any tabletop or desktop surface Alarm Clock Specification: Alarm Clock Power supply: powered by USB cable (included) or 4 x AAA battery (not included) Alarm Clock USB cable length: 50cm Alarm Clock Material: plastic Alarm Clock Size12x7x3cmAppro. Alarm Clock LED display color: blue, green