Net Wt. / Volume 1 unit Description ○Easy, simple, and easy to useMy best 3*7 days memoryStep count/clock• You can see the past top 3 (number of steps and date of achievement). Applies to steps of 10,000 steps or more.○Can also be used in your pocket or bag.put it in your pocketput in baghang from neck• Neck strap is not included. Ingredients Body mass: Approx. 23g (including battery)External dimensions: Height approx. 57 x Width approx. 42 x Thickness approx. 13 mmPower supply: DC3V (lithium battery CR2032 x 1)Accessories: Fall prevention strap, strap clip, trial battery (CR2032 x 1), instruction manual (quality warranty included)Power supply voltage: DC3V (lithium battery CR2032 x 1)Battery life: Approximately 6 months (according to our test conditions) Country of Origin China Manufacturer OMRON Customer Service Center Phone number: 0120-30-6606 Reception hours: Monday to Friday 9:00 to 19:00, excluding holidays Distributor OMRON Healthcare Co., Ltd.