Interval Timer 健康 Sunnyvale - 1月 1, 1970 Basic, straight-forward, functional interval timer with a loud and clear sound. Suitable for any type of high intensity interval training, for example …
MyTabata 健康 Sunnyvale - 1月 1, 1970 In case you've missed the buzz: Tabata is a variation of high intensity interval training (HIIT). The rules specific to tabata; 20 seconds of inte …
