3 ms·And the battery would last for 5 mins.by jcoffland 8y agoAnd the battery would last for 5 mins.iamwil 8y agoNot if it weighs 20 lbs.creep 8y agoI would buy this rare and beautiful piece of technology.deleted 8y ago[deleted]lucb1e 8y agoKeeps people both fit and myopialess? Brilliant! (9kg btw, for the Europeans here.)