1 year warranty phone call avaliable purchasing agent the cat beacons gps 

GPS+GSM+GPRS wireless network
GSM 850/900/1800/1900 MHz 
Built-in high sensitive MTK GPS chip group
Built-in GPS&GSM antenna
IP54 Waterproof
Send location to platform by adjustable time 
Inbuilt battery 450mah battery
50H working time, 160H for standby
Voice Monitor function
Two-way communication function
Phone call avaliable - 2 family numbers supported 
SOS emergency alarm 
Geo-fence alarming function