Dual Electronics XGPS150A Multipurpose Portable Universal Bluetooth GPS Receiver | Wide Area Augmentation System, BlackManufacturers SpecificationsWide Area Augmentation SystemGPS Wirelessly via BluetoothGPS Status ToolGPS Coordinates Within: +/- 2.5mMax Speed: 1,150 MPHMax Altitude: 59,000 ftBattery Life: 8.5 hoursDimensions: 2.24” W x 2.24” D x 0.75” H