Alta syncs automatically and wirelessly to computers and 200 leading iOS, Android and Windows devices using Bluetooth 4.0 wireless technology. Syncing to computers requires Internet connection and USB port. Syncing to mobile devices requires Bluetooth and Internet connection. Syncing range 20 feet

Water Resistance: Alta is sweat rain, splash proof. You can wear Alta in the shower, but we recommend rinsing and drying it afterwards because its best for your skin if the band stays clean and dry. Battery life lasts up to 5 days. Radio transceiver Bluetooth 4.0

Warning: Do not use if you have a pacemaker or other internal, or implanted medical device. Not intended for use by children under 13. Always consult your physician. Slippery when wet