Detailed Product Description BU-353,GPS Receiver,GPS tracker,USB GPS Receiver,Laptop accessaryThe BU-353 GPS Receiver 's incorporating the latest SiRF Star ... antenna.7. Super-cohesive magnetic for mounting on the car8. USB interface connection port. 9. Waterproof and non-slip on ... LED indicator for GPS fix or not fix.LED OFF: Receiver switch offLED ON: No fix, signal searchingLED Flashing: Position ...