關於「Air Bird PTT」標籤，搜尋引擎有相關的訊息討論：

Global positioning system (GPS) and platform transmitter terminal ...academic.oup.com › condor › article › duad014Percutaneous Nephrostomy: Technical Aspects and Indications - NCBIwww.ncbi.nlm.nih.gov › pmc › articles › PMC3312169Global positioning system tracking devices can d