Specifications:
Appearance size: 3.5cm*2.0cm*1.4cm (L*W*H)/1.38*0.79*0.55"
Charging input: AC 110-220V 50/60Hz
Charging output: DC 5.0V 300-500mA
Machine battery: 3.7V 400mAh Li-ion battery
Standby time: 12 days
Working time 4-6 days
Expansion card: support mini TF card
Continuous call time: 150-180 minutes
Network standard: GSM/GPRS
Storage temperature: -40°C to +85°C
Operating temperature: -20 ° C to +55 ° C
Humidity range: 5%-95% non-condensing
GPRS: Upload60, TCP/IP
Working voltage: 3.4-4.2V DC
Standby current: about 2.5mA
Turn on voice control current: about 30mA
Call current: about 150mA
GSM positioning time: 25 seconds
Frequency band: GSM 850/900/1800/1900MHz
Supported countries: China, United Kingdom, France, Germany, Netherlands, Italy, Spain, Portugal, Brazil, Denmark, Russia, Poland, Turkey, Hungary, Thailand, Greece, Indonesia, Malaysia, Vietnam, Myanmar, Pakistan, Iraq, Saudi, Arabia, United States, Kazakhstan, Outer Mongolia, Dubai, etc.
Function Instructions:

Record: Send number 555 to alarm phone, begin to record.

Sound monitoring: Send number 666 to alarm phone

GPS track: Send number 777 to alarm phone, the phone receive geographic position and map link.

Positioning trajectory: Send number 102 to alarm phone.

Delete Memory Card Content: Send Number 445 to alarm phone.

Reboot the phone: Send number 999 to alarm phone, start success after 1 minute.

Reset the phone: Send number 444 to alarm phone.