Description: Easy Use: Time, day and week display, this sound control clock is easy to read and convenient to use. Convenient to Read: Clap hands to turn back light, easy to watch the screen at dark, a convenient back light clock. Multi Showing: Room temperature and humidity display, this LCD clock is a great tool for you to choose the suitable clothing for the day. Power Supply: This LCD calendar use 2x AAA battery(not included) to power and is low energy consume,you don't need to change battery often. Compact: Nice and pratical clock to put on the desk, small and don't take much space, suitable for home,office and school. Specification: Material: Plastic. Color: Black. Size: Approx. 9.3*3.9*9.6cm/3.66x1.54x3.78inch. Battery: 2*AAA battery(Not include). Note: There might be a few color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Package Includes: 1 Piece Desk Clock.(Battery not included) Easy Use: Time, day and week display, this sound control clock is easy to read and convenient to use Convenient to Read: Clap hands to turn back light, easy to watch the screen at dark, a convenient back light clock Multi Showing: Room temperature and humidity display, this LCD clock is a great tool for you to choose the suitable clothing for the day Power Supply: This LCD calendar use 2x AAA battery(not included) to power and is low energy consume,you don't need to change battery often Compact: Nice and pratical clock to put on the desk, small and don't take much space, suitable for home,office and school