A:AnswerEach person can use one of the bands but each person must also have the Fitbit device to insert into each band. The device is sold separately from this pack of bands.
A:AnswerYou need a Fitbit Flex charging cable which are available at best buy. You plug it in to a usb port on your computer and let charge for no more than 2 hours.
A:AnswerThese are alternate bands and you must have a Fitbit to use these. You insert the Fitbit device into the band of your choice, but the electronics are not included in this 3-band collection.