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, 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 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.