Model Number: FS-500-1-1-1 Key Specifications/Special Features: Large LCD for easy readingStep counting, kcal counting, distance counting and speed countingWith 7 days data3-D, 360 degree sensor for high accuracyStep counter, Calories burnt counter, distance traveled counter, activity timer and step speed counterCan store and display 7 days of history record of activity dataRemovable clip

Unit size (L x W x H): 8 x 3.8 x 2.9cm

Net weight: 32g

Battery: maxell CR2032 brand

Battery life: 1 to 2 years