2) charging input inputac110~220v50/60hz
3) charge output: 300-500ma outputdc5.0v
4) machine battery: 400mah li-ion battery 3.7v
5) standby time: 12 days. Working time 4-6 days
6) mini tf card expansion card;
9) continuous calls: 150-180 minutes
10) network system: gsm/gprs
11) storage temperature: -40 c to +85 c
12) working temperature -20 cto +55 c
13) humidity range non-condensing 5%--95%
14) gprs:upload60, tcp/ip
15) working voltage: 3.4 - dc 4.2v
16) standby current:: = 2.5ma
17) open sound control: current is 30ma
18) the current call: = 150ma
19) gsm positioning time: 25 seconds
basic parameters: band gsm850/900/1800/1900mhz