This App is based on iBeacon device. Every time user approach iBeacon, pre-defined alert message would be pop up to give an alert to user. (Continued use of GPS running in the background can dramatically decrease battery life.)
本App基于iBeacon设备。每当用户接近iBeacon,用户将接受到之前设定好的提醒信息。(定位功能可能会在后台持续运行从而影响电池用量。)