Store up to 16 POI, Ultra portable GPS, World's smallest personal GPS guiderAltitude + longitude displayRecord travel speed and time, Perfect for hiking, camping, jogging, mountain climbing, etcNever get lost again!Quick reacquisition of satellites, GPS receiver + location finder (a.k.a. PG03 Mini GPS)Main Function: GPS Receiver + Location FinderMaximum GPS Update Rate: 10 HzDisplay: H:128 x W:64 Dot Matrix Display ScreenFlash Memory: 512KOn-Board Buttons: 3 Buttons (ON/OFF, Navigate Left/right) To select a mode, navigate to mode and press the ON/OFF buttonAccuracy:Position: Up to 10 metersVelocity: 0.1m/secondTime to Start:Hot Start: 5 Seconds approx.Warm Start: 40 Seconds approx.Cold Start: 2 Minutes approx.Sensitivity:Tracking: 161 dBmRe-Acquisition: 157 dBmAcquisition: 148dBmProtocol: NMEA-0183 v3.01Setting: Backlight, Clock, Time Zone, Measure Unit, Clear POI, Cold Start, Reset DefaultPower Source: Built-in rechargeable battery (3.7v, 390 mAh lithium battery)Charge: Via USB, 5VOperating Time: 10 hours, Aprrox.Operating Temperature: -20 to + 55 Degrees CelsiusColour: dark greenMaterial: ABSSize: 65 x 63 x 17mmPackage Contents:1 x tracker1 x USB cableKindly noted that use it in opean areas without obstacle, it takes a whiletime to get the satellite signal.