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Useful gadgets

Discover Pinterest’s 10 best ideas and inspiration for Useful gadgets. Get inspired and try out new things.

Feature:1)appearance size: 3.5cm*2.0cm*1.4cm (L*W*H) 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…

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