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JS-217 Cycle computer
● Clock
● Current Speed
● Average Speed
● Maximum Speed
● Riding Time
● Riding Distance
● Total Riding Distance
● Wheel circumference set
● SCAN
● Speed Comparator
● Metric system and Imperial system alternative
● Battery:1PCS CR2032
● Size:34X48X14.3mm
● 规格：34x48x14.3mm
