Shenzhen Hanllow Science & Technology Co.,ltd is a Shenzhen Hanllow Science & Technology Co.,Ltd based in shenzhen , China. Shenzhen Hanllow Science & Technology Co.,ltd is a member of exporthub.com since December, 2007. Our business is related to Security & Protection industry and we specifically deal in cell phone signal jammer,cell phone signal isolator, cell phone signal amplifier. Please find our product details below:signal jammer / blockerSpecification:System: GSM/CDMA/DCS/PHS(custom adjustable according to requirements)Case material: aluminum alloy wiredrawing casing.Output power: 4-8W, 1-2W each band. Effective range: >3040m adjustable. Input volt.: AC 220¼240V±10%¼Œ45½ž55HzOperation temperature : -35½ž+45„ƒ Humidity : 5½ž95%Weight: ‰¤2.0 kg dimension: 260x 140 x 60 mm appro. Applicable at: School, examination site, band, library, museum, commanding center, bidding assembly hall.Party and governmental organs, large and middle scale meeting hall of various enterprises, music hall, theatres. Detention house, labor reform criminal units, large, middle and small scale prisons, troops, court houses, and interrogation room.Gas station, oil fields, oil bank, where flame and explosion easy caused like warehouses, etc. we have many models for your kind choice and we also can make according to your specific requirements.jammer / blocker / isolatorSpecifications:Systems: GSM/CDMA/DCS/PHS(adjustable according to requirement)Case material: aluminum alloy wiredrawing casing , advanced surface treatment. Output power: 1.5W. Weight: 180gDimension: 100x 57 x 22 mm appro.Effective range: up to 15 meter radius (adjusted according to customer requirementPower consumption: 0.5W/h Charging power supply: AC110250V Built-in battery: DC8V 1500mAhApplicable at:Special small occasions, office of private enterprise owners, confidential offices, negotiation rooms. Floating vehicles, political and commercial VIP security site. Party and governmental organs, various small and temporary meeting rooms of ente