Not your usual alarm clock, the MoMA Design Store LED Untitled Numbers Clock is an interactive machine, not a static box. A chain of four individual blocks, each displaying one glowing LED digit, makes this functional clock a cool design that's a clever conversation piece, at home or in the office. MoMA Design Store LED Untitled Numbers Clock Features: 4 number blocks - measure approx. 1-1/2"L x 1-1/2"W x 2" deep each When placed in the correct order, the four blocks make up the time display Stack them on top of another, like children's blocks or in a linear design Alarm and snooze features make it ideal for your nightstand LED lights Battery backup requires 3 AAA batteries, not included AC adaptor UL listed Made of ABS plastic Made in China