The GSM wireless transceiver uses the flat roof of GSM mobile communication
network. You can resolve the difficult problem about wireless communication by
owning the machine and a SIM card. It can be used as fixed-line telephone or car phone to avoid radiation.

Specifications:
1) Operating voltage: AC 220V+/-10% 50Hz (auto switch)
2) Output: DC 12V -30V1A
3) Operating frequency: 900MHz/1800MHz
4) Environment temperature: -10 ~ +45C
5) Environment humidity: 10%~95%
6) Environment noise: <600LBA
7) SIM card match with the machine: DC 5V
8) Dimensions (L x W x H): 150 x 90 x 30mm

Inner packing:
Color box dimensions: 260 x 170 x 63mm