Functions:

1) According to the current mobile system frequency of CDMA, GSM, DCS, it providesshield for mobile signal from them in special area that can not communicate withthe station, so as to get to the active shield for using mobile phone

2) You can use mobile phone signal jammer at the places more than 200m away fromthe base station for best performance

3) When switched on, it can work steadily for a long time Technical parameters:

1) Coverage: 500m22) Transmitting frequency:

a) CDMA: 870 - 880MHz b) GSM: 930 - 960MHz

c) DCS: 1,805 - 1,850MHz

d) PHS WLL: 1,900 - 1,925MHz3) Total output power: 200mW (CDMA: 50mW; GSM: 50mW; DCS: 50mW; PHS: 50mW)4) Adaptable system: CDMA 800MHz; GSM 900MHz; DCS 1,800MHz; PHS: 1,900MHz5) Working temperature: -40 - +55° C6

) Working humidity: 20% - 95%7

) Power adapter: input: AC 160 - 240V, output: DC 5V