CF Adapter with extension cable is for use with Pharos Bluetooth GPS Receiver. If you own a Pharos Bluetooth GPS Navigator, now you can detach the modular GPS receiver from it's Bluetooth dock and attach it to this CF adapter to use it through your Pocket PCs CompactFlash slot making it completely portable. You can also use this extension cable with the iGPS-360 CompactFlash receiver. When you are inside your vehicle, you can simply detach the receiver and use the extention cable to set the receiver on your dashboard for improved reception.