Mobile phone signal jammer isolator blocker Model: sk-04e cell phone signal jammer is the latest information security product. The cell phone jammers are now a necessity for law enforcement and the military to interrupt communications by criminals and terrorists, and also for accomplishing a more cultured society. Specifications òmobile phone signal jammed: cdma, gsm, dcs, 3g òisolating signal bandwidth Cdma: 870-894 mhz Gsm: 925-960mhz Dcs: 1805-1880mhz Phs: 1900-1990mhz Scdma: 450-470mhz 3g:2, 100-2, 200mhz òrange: approx. 100 meters òweight:1kg òdimension: l 250x w 140 x h 52 mm òpower source: dc 5v òexternal power òrf power: 200ma òoutput power: 300mw òpower adapter: input ac160v-240v òrelative humidity: 30%--95% òworking temperature: -30~ +55 deg c High power signal jammer| adjustable mobile phone signal isolator | high power phone signal blocker | high power mobile phone signal isolator | adjustable mobile phone signal disturber English exquisite color box