Features 1、[Large Display with Adjustable Dimmer]5 inch LED large clear display for digits ensure the time is easy to see. The smart brightness dimmer design allows you set the brightness of display from 0 to one hundred percent. 2、[Adjustable Alarm Sound]Two alarms with separate weekend, weekday, all-7-day mode satisfy the needs of everyone and every family. The snooze function is specially designed for those who need an extra 5 minutes to start the day. 3、[FM Radio]It will be an FM radio when you press the "FM Radio" button, which can auto scan and store channel and radio station. And the FM radio volume can be loud or low through the adjustable button. Also, the radio has a timed automatic shutdown function. 4、[Easy to Use]Large rotating knob design, you don't have to hold a button to scroll to set the time, all you have to do is dial the knob. It double as a big "Snooze" button, very easy to use and manipulated. 5、[Multifunction]Other features displayed on the screen include: year, month, day, hour, minute, display, 12h or 24h mode, temperature (°F or °C), humidity, voice activated function, etc. Specification Specifications: Material: ABS Temperature Range: 20-50°C Humidity Range: 20-90%RH Temperature Error: ±2°C Humidity Error: ±5%RH Power Supply: rechargeable battery(Built in) Item Size: 113 * 86 * 71mm / 4.45 * 3.38 * 2.79in Package Weight: 305g / 10.75oz Package Size: 12 * 9.5 * 7.9cm / 4.72 * 3.74 * 3.11in Package List 1 * Digital Alarm Clock 1 * USB Cable 1 * User Manual (English)