Alrens(TM)Fashion Mini and Lightweight Cube Wood Grain LED Alarm Clock Time Temperature Date Clap On Sound Activated Table Clock Office Bedroom Home Travel Use Digital Desk Clock Material: MDF wood . Size: 6*6*6cm/2.4"*2.4"*2.4". Powered by: AAA batteries (Battery Not Included) or DC / USB powered. Automatic switching time, temperature, date. Sound control function: Clap your hands to control the clock. Digital desktop alarm clock for home & office, perfect for travel use.