Model: GPS108A, 108B 
Difference between 108A/B model: 
108A is portable type. 
108B has relay & cables,can cut off enginne & connecting to vehicle power.

Technical features:
DIM.106x63x37.5mm
Weight: 343g
Network: 2G  GSM/GPRS
GPS sensitivity: -165dbm
GPS Accuracy: 5m
Time to first fix: 
Cold starts:    30s 
Aided starts:    5s 
Reacquisition:    1s
Charger voltage: 110220V    input, 5v output
Battery: Chargeable 3.7V 10000mAh Li-ion battery 
Waterproof grade: IP66

Highlights: 
1. IP66 waterproof  
2. Strong magnetic 
3. Portable, no wiring, easy installation 
4. Built-in 10000MA battery
5. Real-time  tracking  by SMS / IOS Android App / Platform  
6. Long standby,6  months  if  it  works  under " sleep  by  time" mode  and  6.9 
Years if it works under " schedule" mode
7. Anti-tamper alarm,Movement  alarm, Geo-fence  alarm, shock  alarm   
8. Voice listen-in by microphone  
9. Multiple sleep mode 

4 tracking solutions:
- SMS tracking by calling, return google map link
- Absolute street address by SMS
- Free mobile app Trackerhome
- Free tracking platform  

GPS108A include: Gps unit, USB cable,user manual,box 
GPS108B include: GPS unit,USB cable,harness cable,relay, user manual,box