Major function:
- GPS+LBS+WiFi positioning
- 4-frequency GSM 850/900/1800/1900 MHz which can Work worldwide
- track the real time address
- Built in battery 600 mAh
- Geo-Fence
- One-touch recording
- Remote voice monitoring
- Magnetic adsorption
- Low Power Alarm
- Waterproof
- Support Multiple platforms: IOS/android/web /APP 
- Historical track playback

Specifications:

Model	B28
GSM frequency band	850/900/1800/1900MHz
GPRS standard	Class 12, TCP/IP
Working temperature	-20C ~ +70C
Working humidity	5% ~ 95% RH
Measure	39(L)x35(W) x14(H)mm
Product weight	25g
Total weight	144g
Packing size	11.5cm  * 7.5cm * 3.5cm
Battery capacity	600mAh

Platform and APP:
When you choose our GPS tracker,you could FREE use the tracking software platform for lifetime.