Product type:GPS tracking system GSM:B2,B3,B5,B8 UMTS:B1,B5,B8 Wi-Fi:Max access terminals:10 Protocols:IEEE 802.11b/g/n,2.4GHz,supporting AP mode Memory:RAM 1GB ,ROM 8GB Positioning modes::GPS, GLONASS(optional), Beidou (optional) Sensitivity:-143dBm Show More