The download clip works with pc or mac simply plug into your usb port clip on the watch and install the poolmatepro software from swimovate39s websitesee how you are progressing at a glancefeatures allows the poolmatelive watch to download swim data to pc or mac view data for each lap you swim on graphs in tables and by calendar view swim volume per month see your fastest swim and total swim distance get extra metrics such as stroke length and stroke rate perform firmware updates on the