1、Time function: it displays hour, minute, and it can change in 12/24 hour system. 2、Date function: it displays day, month and year (from 2000 to 2099). 3、Alarm function: you can toggle the switch to select the alarm and set the daily alarm. 4、Temperature function: it can display and change the ℉/℃. The normal measurement range is 0~50℃ (32~122℉). 5、Mode selection: please press HOUR/MONTH key to change three modes dP-1, dP-2, dP-3. 6、Low light function: when 18:00-7:00, the screen is in low light automatically. (press MIN/DATE key to choose L-SL, the screen is in low light automatically at night, L-01, L-02, L-03. Turn off the screen.) 7、The normal working voltage: 5V/1A and external power-off conservation function. 8、Can be placed on the table, and there is also a hanging hole on the back that can be hung on the wall. This multifunctional electronic clock can be placed on the tabletop or hung on the wall, more clear and beautiful, and it can be used during the day and night. Features: Time function: it displays hour, minute, and it can change in 12/24 hour system. Date function: it displays day, month and year (from 2000 to 2099). Alarm function: you can toggle the switch to select the alarm and set the daily alarm. Temperature function: it can display and change the ℉/℃. The normal measurement range is 0~50℃ (32~122℉). Mode selection: please press HOUR/MONTH key to change three modes dP-1, dP-2, dP-3. Low light function: when 18:00-7:00, the screen is in low light automatically. (press MIN/DATE key to choose L-SL, the screen is in low light automatically at night, L-01, L-02, L-03. Turn off the screen.) The normal working voltage: 5V/1A and external power-off conservation function. Can be placed on the table, and there is also a hanging hole on the back that can be hung on the wall. Specifications: Material: ABS Housing color: white Light color: white, red, green, blue (optional) Screen type: LED Display type: digital Form: single face Power supply: USB 5V 1A Battery: 1 * CR2032 button battery, 3V, 210mAh (included) Item size: 240 * 94 * 17mm / 9.4 * 3.7 * 0.7in Package size: 245 * 96 * 47mm / 9.6 * 3.8 * 1.9in Package weight: 225g / 7.9ounce Package list: 1 * Digital Clock 1 * USB Cable 1 * User Manual 1 * Digital Clock 1 * USB Cable 1 * User Manual