Specifications:  Housing material: plastic + glassEnergy source: wired electricalSize: 3.15*3.54*2.13 inchesNet weight: 5.6 ouncesGross weight: 8.8 ounces Features:1. 2.5 Inch Large Screen Display:    Easy to watch time, large VN LCD screen, large font display and 25° tilt design, ensuring easy, clear and better viewing time during day and night.2. The Screen Displays Multi-level Brightness Adjustment:    4 levels of brightness adjustment, LCD dimming, press the large knob at night to make it dim, sleep comfortable; adjust the brightness when getting up.3. Dual USB Charging Function:    Safe and fast dual USB charging interface, total power supply 3A; built-in surge protection to prevent overcharging, surge and overheating, ensuring stable power output for each device.4. Snooze Option And Progressive Wake-up Alert:    Snooze function gives you extra sleep time. Start with a subtle low volume and gradually increase to a higher volume, gently awakening you.5. Easy To Set:    Easy to set wake-up alert and convenient time setting button, turn knob to set time and alarm; just rotate the rotary dial to the desired time and press “Setting” to complete.6. MINI Size:    Small and portable, suitable for any position in your room.7. Backup Battery (without battery):    When inserting a AAA battery (not included), remember the time, perform an accurate timing when the power fails, or suddenly disconnect the power cord. Note: It does not support charging and keeps the LCD in the same bright illumination in battery mode; it is used with the always connected power cord.8. Multiple Functions:    It is a digital alarm clock that not only displays time, but also charges your phone or other mobile device while you sleep. Package Included:1 × Alarm Clock1 × Power Cord1 × Instruction Manual