I know this has been discussed in great length around here but this company rocks with customer service. When I switched my device from an older bike to a new one it looks like I didn't get the unit mounted deep enough under the seat and over time my big butt either crushed it or I crushed it in one of many "pucker moments!" I called them and in less than a minute the replacement unit was on the way! But wait there's MORE! The unit arrived today with a neat little carrying sack for running around at campsites, is how it will serve me!