Features: 1.Support voice control and brightness adjustment, 3 groups of alarms can be set. 2.With temperature and humidity sensor, can monitor the indoor temperature and humidity. Just like a companion to protect your life quality . 3.Display time, temperature, date, and they can be automatically switched to display, single press SET key to switch, or fixed display them. 4.In the power saving mode, the LED display will automatically turned off and the alarm can be awakened by knocking or sound. 5.12/24 hour system can be converted, the default is 24 hour system, can be adjusted according to your own habits. 6.Support LED digital time, digital temperature, fahrenheit and celsius conversion, date display. 7.You can choose to use voice control mode or constant light mode (battery power supply is recommended to choose voice control mode)(battery is not included). 8.Use 4 x AAA batteries(not included) or USB power cord for power supply, built?in power supply, it will not display when the power is off, but it can still count normally, eliminating the trouble of resetting the time after each power off. specification:Conditon: 100% Brand New Item Type: LED Alarm Clock Material: ABS+MDF Color: Black Clock W/ White Light Function: Voice control, brightness adjustment, 3 groups of alarms, temperature and time display functions Switch Function: Time, temperature, date can be automatically switched to display, single press SET key to switch Time System: 12/24 hour system can be converted, the default is 24 hour system Support: LED digital time, digital temperature, date, fahrenheit and celsius conversion display Alarm Setting: 3 groups of alarms can be set Power Supply: Use 4pcs AAA batteries(not included) or USB power cord for power supply Mode: Voice control mode or the constant light mode (battery power supply is recommended to select the voice control mode) Size: Approx. 8 x 14.9 x 7.8cm/3.1 x 5.9 x 3.1in(manual measurement, for reference only) Built-In Battery Type: Lithium manganese button battery Built-In Model: CR2032 Built-In Battery Capacity: 210mAH PackageList:1 x Wooden Clock1 x Manual1 x USB cable NoteManual measurement, for reference only, thank you for your understanding. The first step after receiving the product, please press the reset key(reset key) to restore the factory settings before starting to use. Normal use(DC 5V/500MA), battery emergency(4pcs AAA battery), use battery, if the display is dark or has been flashing,), indicating that the battery is almost no electricity, please replace it in time to prevent battery leakage liquid damages the product.