Sell Easy-to-Use Mobile Phone Signal Screen ( NK-3000 )

Product Name: Easy-to-Use Mobile Phone Signal Screen(NK-3000) Model Number: NK3000 Place of Origin: China Product Name:Mobile Phone Signal Screen Can Model Number:NK-3000 Specifications: 1) Frequency range: a) 900MHz band: 860-960MHz b) 1800MHz band:1800-1970MHz 1) Transmission power: 6 +/- 3dBm 2) Power: 220VAC or external DC 3) Effective section: 0 to 360 degrees 4) Reasonable and stable functions 5) Used in places where phone is prohibited or restricted like meeting rooms, theaters, music halls, courts, gas stations and others 6) Can effectively screen microwave signals between the transmission station and mobiles 7) Power of each wave band is extremely weak, nothing to worry about electric wave radiation that affects human health