HomeyHouse Voice Sound Activated Rectangular Black Wood LED Digital Alarm Clock With Temperature, Time and Date Display (Blue LED) Displays time and temperature. Sound control function. Just make sound to wake it up (Sound control function is ON). With Alarm Function, let you get up on time. Powered by USB connection or 3x AA batteries. (Note: Batteries are NOT included.) Stylish and exquisite design make it a perfect gift for your friends and daily use.