Brief introduction: This product is a patented product, patent number: 201630077595.0 1. Clock function: display "time", "minute" and "second". 2. Four sets of countdown functions: the maximum countdown time is 99 hours, 59 minutes and 59 seconds. 3. Positive timing function: the maximum positive timing can be up to 99 hours, 59 minutes and 59 seconds. 4.There is a 60-second alarm at the end of each countdown 5. Multiple USES: suitable for kitchen cooking, school, laboratory, parking, lunch break set alarm time control. 6. Large window with clear widescreen display. 7. Large button, easy to operate;The design is novel and practical.The back of the magnet and bracket, spare hole. 8. Product size: 89 X 70 X 23 mm
