This multifunctional digital clock is constructed with MDF and PVC material. It displays both time and temperature on the screen simultaneously. The clock features a sound control mode (Power-saving mode), where the screen turns off after 10 seconds, and you can light it up by clapping your hands. It allows you to set up to 3 alarms and can be powered by either 4 AAA batteries (not included) or via USB. The clock complies with CPSIA regulations and measures 5.9" in length, 2.8" in width, and 1.6" in height.