inputs.text: excellent little data logger - holux data logger better expected battery life lasted long time considering using bluetooth even though company based china m241 feels solid made good materials breeze lean use controls love lcd screen used gps upstate ny planned trails woods able upload data google earth see laid property con slight delay using gps atv 12 sec delay mph reading not problehem though holux website excellent place find manuals updated software gps pros ease use battery life quality lcd screen good website aa battery 1 cons slight delay mph readings overallthis gps perfect either everyday user vacations portability makes easy store aa battery gives possibility get juice instantly much research gps units bought one think great bang buck drew