1. 50 channel GPS L1 frequency C / A code. 2. Advanced sensitivity up to -165dBm. 3. Built-in WAAS/EGNOS/MSAS demodulator with any additional hardware. 4. Low power consumption 5. For car navigation, navigation, fleet management, AVL, personal navigation, tracking systems and mapping. Vehicle Tracking and Location Service Base PDA / Notebook Navigation. Car navigation and navigation distance measurement. Sports, leisure facilities fleet management vehicle tracking Description: Product Name: GPS Navigation Module Product material:pvc Product color: black Host Product size:4.9cmx3.8cmx1.6cm Product weight:100g Package Contents: 2x GPS Navigation Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.