Tweetshould be able to do it on an iphone or equivalent. you can also check out titleboxing they carry all kinds of pretty cheap training aids like that
Tweetshould be able to do it on an iphone or equivalent. you can also check out titleboxing they carry all kinds of pretty cheap training aids like that
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TweetThere is a really good one called Seconds Pro for the Iphone. You can use their samples hiit routines or create your own. Best hiit app i have ever tried.
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