It has LED display of time and temperature alternately.ime display 12-hour or 24-hour mode，bedroom, living room, kitchen and more The LED light can be adjusted in 3 levels of brightness (bright, normal, dark) so you can choose the right brightness for your case.From 18:00 PM to 7:00 AM the following morning, the brightness will automatically be darkened, energy saving and eye friendly Voice Sensing/Constant Light: You can switch between voice sensing and constant light.In the sensing mode, it will only light up when it detects sound or vibration over 60db Clock with 2 types of power supply: Can be used in case of power outages by using battery or USB simultaneously. With the memory function, even if the power is temporarily turned off, there is no need to reconfigure it.Power adapter is not included, you need to purchase it separately It's not only a clock, but also a great decoration for bedroom, elegant appearance and multiple functions. Great for using at night, the bright digits won't be too harsh for your eyes Specification: Dimension: 60*60*60mm Material: wood/plastic Battery: AAA batteries/ (not included) LED Temperature and humidity alarm instructions products general configuration(code a wooden clock,use a manual.USB line) Receive the firs step:please press the power reset button(reset key)to returm to the factory settings.and then start using it. Tips:Use common USB,emergency battery(3*AAA or 4*AAAbattery)(battery, or if the display is dimmed been flashing,indicating that the battery is running out of power.please replacing the battery to prevent to prevent leakage and damage to the product.) Press any key to turn off the alarm back Under voice mode.when close to clap or tap the alarm clock to wake up the display Package list: 1*alarm clock 1*USB cable 1*user manual Notes: 1. Please allowed 1-3mm differences due to manual measurement, thank you for your understanding! 2. Due to the difference between different monitors, please understand that the picture may not reflect the actual color of the item.