Dongguan Hongyuanli Electronic Technology Co., Ltd Introduction to the Main Features of the New Wired English Version 668 wired 19 functions Total mileage Single mileage Average speed Speed Calories Clock display Maintenance tips Menu cycle display, sleep clock display, tire circumference setting Select metric/imperial Temperature measurement Cycling Time Automatic Wake-up While Riding Battery Change Data Storage for 20 Seconds Backlight Function User Selection Instant Riding Speed Display Speed Comparison Prompt No Riding 300 Seconds Low Power Mode