Features:
1. Compatibles with Android and iOS phone
2. Real-time tracking
3. Historical route
2. Voice message
3. Geo-fence, automatic alarm when out of range
4. Two-way communication
5. Intelligent power saving 
6. GPS + LBS + Wi-Fi three mode positioning
Structure parts
Colors: gold and silver
Device size: (L)45x(W)35x(H)13.5mm
Buttons: power button and SOS button
GPS antenna: high sensitive ceramic antenna
GSM antenna: laser etching LDS antenna
Display screen 0.96 inches OLED
Battery 500mAh
SIM card slot: one slot
Hardware parts: 
Chipset: MTK MT6261
GPS chip: MTK3336
GPRS: class 12
GPS signal: L1, 1575.42MHz C/A code
GPS channels: 22 channels
GPS chip:
Tracking sensitivity: -159dBm
Acquisition sensitivity: -143dBm
GPS accuracy: 5-15m
LBS accuracy: 100-1000M
Minimum standby current: <0.5mA
Average standby current: <2.5mA
Deep dormancy current: <5uA
Average working currency: <55mA
Working temperature: -20 to 70°C
Working humidity: 5 to 95%
GPS antenna: built-in high sensitivity ceramic antenna
GSM antenna: four frequency PIFA antenna
G-sensor supported
Speaker: AAC 1609 speaker
Software parts: 
Supported system: supports Android 2.3 or above, iOS 5.0 or above
Languages: Chinese/English
GSM + GPRS + GPS: GPS + Wi-Fi + LBS three mode
AGPS: cool start 26 seconds positioning
Power manage: ultra-low power consumption management, intelligent dormancy
Geo-fence alarm: when out of setup range
Historical track: three months historical track
Remote update: remote update app, remote maintenance and regulation, remote setup parameters