The lezyne power gps computer is a robust cycling computer with a large easy read display that once paired via bluetooth with you smart enables ios or android device will display incoming texts emails and calls the large display shows up to 4 data fields with the bottom field formatted for auto scrolling or manual navigation this lezyne gps computer has an elegant machined aluminium bezel and the usb rechargeable lithium polymer battery provides up to 22 hours of runtime the adv