LED Wooden Alarm Clock Electronic Voice Control Temperature Date Table Digital Clocks Rectangular Black Wood White Lamp Condition: Item Type: Wooden Clock Material: MDF+ABS Color: As Pictures Shown Function: Voice control, brightness adjustment, 3 groups of alarms, temperature and time functions Switch Function: Time, temperature, date can be automatically switched to display, single press SET key to switch Time: 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: Three groups of alarms can be set Power Supply: Use 4 x AAA batteries or USB power cord for power supply (built-in power supply, it will not display when power is off, but it can still count normally, avoiding the trouble of resetting the time after each power off) (without AAA battery) Mode: Can choose e the voice control mode or the normally on mode (battery power supply is recommended to select the voice control mode) Size: Approx.4.2x7x14.9cm / 1.7x2.8x5.9in Built-In Battery Type: Lithium manganese button battery Built-In Model: CR2032 Built-In Battery Capacity: 210mAH