Rtrivr
Detailed App Info:
Application Description
通过低功耗蓝牙4.0与手机连接，实现双向报警及数据传送功能，并记录断开连接时的位置，遥控拍摄
Requirements
Your mobile device must have at least 2.57 MB of space to download and install Rtrivr app. Rtrivr is available on iTunes for $0.00
If you have any problems with installation or in-app purchase, found bugs, questions, comments about this application, you can visit the official website of YUHONG ZHANG at http://www.rtrivr.com.
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