Model:B2701B Specifications:275X194X86mm Automatic detection and display of time, date and temperature Personalized music alarming function Time can be adjusted freely, alarm clock function A built-in large-capacity CPU, which can store data for 50 years. An independent temperature control circuit, with a detection scope: A built-in (3V) lithium battery with a long service life, which can store data for a long time in case of power cut Enhanced reliability and stability. Amazing energy saving: daily cost is reduced to as low as 5 cents. Accuracy and stability: error in a month: no more than 1 minute Exquisite appearance: eye-catching ndividualities, fashionable appearance, virtually nice gifts patent code:200430044263.x