Features: 1. Voice control , but need decibels 60db 2. Power supply mode: 3 x AAA battery, but 't include in the package/also can USB-powered Product Introduction: 1. Starting up/Reset: Press Reset button to reset, 0- screen display 2. Clock Function: Hour, minute and temperature, which can be switched between 12-hour system and 24-hour system 3. Voice Control Function: Under the power saving mode, it can rouse display when voice is in the close range or larger than 60dB. 4. Three Display Modes: dp-1: Display time or date and temperature in turn; dp-2: maintain current set display; dp-3: only display time and temperature 5. Alarm Function: Available to set three alarms 6. Temperature Switchable Display /; temperature measuring range : (0-50); (32-122) 7. Working Voltage: DC5V/500mA Occasion: Bedroom /office size: about 120 x 80 x 72mm Material: ABS colour: dark Wood (red letter) Package Contents: 1 x LED alarm clock 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.