SPA Tool&reg; Battery or USB Powered Triangle - Desktop Home Office travel Clock with Time Display and Voice Control (Black wood Blue LED) Display can be set to be Sound Activated mode (Clock keep working) OR stay on all the time. In sound activated mode, display turns off after 15 seconds. Clap hands/make a sound/simply touch the clock to activate the display to read time. Fashionable and portable digital desktop alarm clock for home & office; Clear LED Display: Time (12/24 hrs), voice control. Material: Medium-density fiberboard Wood(not real wood) and graining coating. Color: as shown, Size:12cm9cm9cm, Digital display: Time. -- Power source: batteries(Not Included) or USB. Package included: 1 x Wooden Digital Alarm Clock with LED Display,1 x USB Cable,1 x English User Manual