{"id":3094,"date":"2024-07-08T01:53:00","date_gmt":"2024-07-08T01:53:00","guid":{"rendered":"https:\/\/www.jammersignal.com\/?p=3094"},"modified":"2024-06-27T09:37:06","modified_gmt":"2024-06-27T09:37:06","slug":"jammer-that-blocks-phone-signals-penetrate-walls","status":"publish","type":"post","link":"https:\/\/www.jammersignal.com\/fr\/jammer-that-blocks-phone-signals-penetrate-walls\/","title":{"rendered":"Le brouilleur qui bloque les signaux des t\u00e9l\u00e9phones portables peut-il traverser les murs ?"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Un brouilleur de signal de t\u00e9l\u00e9phone portable peut-il traverser un mur ?<\/h2>\n\n\n\n<p>De nombreuses personnes se demandent si un <a href=\"https:\/\/www.jammersignal.com\/fr\/product-category\/cell-phone-signal-jammer\/\">brouilleur de t\u00e9l\u00e9phone portable<\/a> peut p\u00e9n\u00e9trer dans un mur, et cette question n\u00e9cessite la prise en compte de plusieurs facteurs.<\/p>\n\n\n\n<p>Tout d'abord, examinons le brouilleur lui-m\u00eame. La fonction du <a href=\"https:\/\/www.jammersignal.com\/fr\/\">brouilleur<\/a> est d'\u00e9mettre un signal radiofr\u00e9quence sp\u00e9cial pour interf\u00e9rer avec le signal du t\u00e9l\u00e9phone portable, mais lorsque le signal rencontre un obstacle sur le chemin de transmission, le signal est att\u00e9nu\u00e9, et le degr\u00e9 d'att\u00e9nuation d\u00e9pend de la nature de l'obstacle. Les murs solides en b\u00e9ton arm\u00e9 ou en briques, ainsi que les murs en b\u00e9ton arm\u00e9 et les murs continus en briques, att\u00e9nuent g\u00e9n\u00e9ralement le signal blind\u00e9 du t\u00e9l\u00e9phone portable au point qu'il ne peut plus \u00eatre efficacement prot\u00e9g\u00e9. Comme le signal est sans fil et non \u00e0 rayons X, il ne peut pas p\u00e9n\u00e9trer directement dans le mur, mais se r\u00e9fracte et se r\u00e9fl\u00e9chit lorsqu'il rencontre le mur.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><a href=\"https:\/\/www.jammersignal.com\/fr\/produit\/portable-24antenna-full-frequency-jammer-blocks-all-signals\/\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1.jpg\" alt=\"Premi\u00e8re mondiale jammersignal bloque les brouilleurs portables (1)\" class=\"wp-image-1539\" style=\"width:500px\" srcset=\"https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1.jpg 800w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1-300x300.jpg 300w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1-150x150.jpg 150w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1-768x768.jpg 768w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1-600x600.jpg 600w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1-100x100.jpg 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n\n\n\n<p>Dans certains cas, les diff\u00e9rents mat\u00e9riaux utilis\u00e9s pour les murs att\u00e9nuent \u00e9galement le signal blind\u00e9 du t\u00e9l\u00e9phone portable \u00e0 des degr\u00e9s diff\u00e9rents. Par exemple, un mur constitu\u00e9 d'une quille en acier l\u00e9ger et de plaques de pl\u00e2tre peut avoir l'att\u00e9nuation la plus faible, tandis que des mat\u00e9riaux tels que le verre ou les portes en bois peuvent \u00e9galement entra\u00eener des niveaux d'att\u00e9nuation plus faibles. En outre, si le signal du t\u00e9l\u00e9phone portable est bloqu\u00e9, il peut encore avoir un certain impact de l'autre c\u00f4t\u00e9 du mur \u00e0 travers les espaces ouverts tels que les portes et les fen\u00eatres ou par r\u00e9flexion et r\u00e9fraction, cr\u00e9ant ainsi l'illusion d'une capacit\u00e9 de p\u00e9n\u00e9tration. Meilleures ventes <a href=\"https:\/\/www.jammersignal.com\/fr\/product-category\/wifi-jammer\/\">Brouilleurs WIFI<\/a> et <a href=\"https:\/\/www.jammersignal.com\/fr\/product-category\/gps-signal-jammer\/\">Brouilleurs GPS<\/a> en Europe et en Am\u00e9rique.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"2000\" height=\"2000\" src=\"https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-6.jpg\" alt=\"Premi\u00e8re mondiale jammersignal bloque les brouilleurs portables (6)\" class=\"wp-image-1544\" style=\"width:500px\" srcset=\"https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-6.jpg 2000w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-6-300x300.jpg 300w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-6-1024x1024.jpg 1024w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-6-150x150.jpg 150w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-6-768x768.jpg 768w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-6-1536x1536.jpg 1536w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-6-600x600.jpg 600w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-6-100x100.jpg 100w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/><\/figure>\n\n\n\n<p>En r\u00e9sum\u00e9, si les bloqueurs de signaux de t\u00e9l\u00e9phones portables ne peuvent g\u00e9n\u00e9ralement pas traverser les murs, leur efficacit\u00e9 peut \u00eatre affect\u00e9e par le type de mat\u00e9riau du mur ainsi que par les ouvertures ou les surfaces r\u00e9fl\u00e9chissantes qui peuvent affecter la propagation du signal.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h5 class=\"wp-block-heading has-text-align-center\">Meilleures ventes de brouilleurs de signal<\/h5>\n\n\n<div data-block-name=\"woocommerce\/product-category\" data-categories=\"[100]\" data-columns=\"4\" data-content-visibility=\"{&quot;image&quot;:true,&quot;title&quot;:true,&quot;price&quot;:true,&quot;rating&quot;:false,&quot;button&quot;:false}\" data-orderby=\"menu_order\" data-rows=\"2\" class=\"wc-block-grid wp-block-product-category wp-block-woocommerce-product-category wc-block-product-category has-4-columns has-multiple-rows\"><ul class=\"wc-block-grid__products\"><li class=\"wc-block-grid__product\">\n\t\t\t\t<a href=\"https:\/\/www.jammersignal.com\/fr\/produit\/4g-hot-sale-8antenna-handheld-cell-phone-blocker\/\" class=\"wc-block-grid__product-link\">\n\t\t\t\t\t<div class=\"wc-block-grid__product-onsale\">\n\t\t\t<span aria-hidden=\"true\" data-no-translation=\"\" data-trp-gettext=\"\">Vente<\/span>\n\t\t\t<span class=\"screen-reader-text\" data-no-translation=\"\" data-trp-gettext=\"\">Produit en vente<\/span>\n\t\t<\/div>\n\t\t\t\t\t<div class=\"wc-block-grid__product-image\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/4g-jammer-jammersignal-handheld-portable-jammers-1-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"brouilleur 4g jammersignal brouilleurs portables (1)\" srcset=\"https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/4g-jammer-jammersignal-handheld-portable-jammers-1-300x300.jpg 300w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/4g-jammer-jammersignal-handheld-portable-jammers-1-150x150.jpg 150w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/4g-jammer-jammersignal-handheld-portable-jammers-1-100x100.jpg 100w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/4g-jammer-jammersignal-handheld-portable-jammers-1.jpg 433w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t\t\t\t<div class=\"wc-block-grid__product-title\">4G Jammer Hot Sale 8 Antenna Portable Handheld Cell Phone Signal Blocker<\/div>\n\t\t\t\t<\/a>\n\t\t\t\t<div class=\"wc-block-grid__product-price price\"><del aria-hidden=\"true\"><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&#036;<\/span>599.00<\/span><\/del> <span class=\"screen-reader-text\" data-no-translation=\"\" data-trp-gettext=\"\">Le prix original \u00e9tait : &#036;599.00.<\/span><ins aria-hidden=\"true\"><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&#036;<\/span>219.99<\/span><\/ins><span class=\"screen-reader-text\" data-no-translation=\"\" data-trp-gettext=\"\">Le prix actuel est : &#036;219.99.<\/span><\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/li><li class=\"wc-block-grid__product\">\n\t\t\t\t<a href=\"https:\/\/www.jammersignal.com\/fr\/produit\/portable-24antenna-full-frequency-jammer-blocks-all-signals\/\" class=\"wc-block-grid__product-link\">\n\t\t\t\t\t<div class=\"wc-block-grid__product-onsale\">\n\t\t\t<span aria-hidden=\"true\" data-no-translation=\"\" data-trp-gettext=\"\">Vente<\/span>\n\t\t\t<span class=\"screen-reader-text\" data-no-translation=\"\" data-trp-gettext=\"\">Produit en vente<\/span>\n\t\t<\/div>\n\t\t\t\t\t<div class=\"wc-block-grid__product-image\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Premi\u00e8re mondiale jammersignal bloque les brouilleurs portables (1)\" srcset=\"https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1-300x300.jpg 300w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1-150x150.jpg 150w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1-768x768.jpg 768w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1-600x600.jpg 600w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1-100x100.jpg 100w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/world-first-jammersignal-blocks-portable-jammers-1.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t\t\t\t<div class=\"wc-block-grid__product-title\">Le premier brouilleur portable \u00e0 24 antennes bloque tous les signaux<\/div>\n\t\t\t\t<\/a>\n\t\t\t\t<div class=\"wc-block-grid__product-price price\"><del aria-hidden=\"true\"><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&#036;<\/span>1,599.00<\/span><\/del> <span class=\"screen-reader-text\" data-no-translation=\"\" data-trp-gettext=\"\">Le prix original \u00e9tait : &#036;1,599.00.<\/span><ins aria-hidden=\"true\"><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&#036;<\/span>829.88<\/span><\/ins><span class=\"screen-reader-text\" data-no-translation=\"\" data-trp-gettext=\"\">Le prix actuel est : &#036;829.88.<\/span><\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/li><li class=\"wc-block-grid__product\">\n\t\t\t\t<a href=\"https:\/\/www.jammersignal.com\/fr\/produit\/handheld-4g-5g-jammer-vhf-lojack-wifi-gps-16antenna\/\" class=\"wc-block-grid__product-link\">\n\t\t\t\t\t<div class=\"wc-block-grid__product-onsale\">\n\t\t\t<span aria-hidden=\"true\" data-no-translation=\"\" data-trp-gettext=\"\">Vente<\/span>\n\t\t\t<span class=\"screen-reader-text\" data-no-translation=\"\" data-trp-gettext=\"\">Produit en vente<\/span>\n\t\t<\/div>\n\t\t\t\t\t<div class=\"wc-block-grid__product-image\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/high-performance-jammersignal-4g-5g-jammers-1-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"brouilleurs jammersignal 4g 5g haute performance (1)\" srcset=\"https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/high-performance-jammersignal-4g-5g-jammers-1-300x300.jpg 300w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/high-performance-jammersignal-4g-5g-jammers-1-150x150.jpg 150w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/high-performance-jammersignal-4g-5g-jammers-1-768x768.jpg 768w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/high-performance-jammersignal-4g-5g-jammers-1-600x600.jpg 600w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/high-performance-jammersignal-4g-5g-jammers-1-100x100.jpg 100w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/high-performance-jammersignal-4g-5g-jammers-1.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t\t\t\t<div class=\"wc-block-grid__product-title\">Brouilleur 4G 5G VHF LOJACK WiFi GPS 16 Antennes Intercepteur Haute Performance<\/div>\n\t\t\t\t<\/a>\n\t\t\t\t<div class=\"wc-block-grid__product-price price\"><del aria-hidden=\"true\"><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&#036;<\/span>1,539.00<\/span><\/del> <span class=\"screen-reader-text\" data-no-translation=\"\" data-trp-gettext=\"\">Le prix original \u00e9tait : &#036;1,539.00.<\/span><ins aria-hidden=\"true\"><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&#036;<\/span>839.99<\/span><\/ins><span class=\"screen-reader-text\" data-no-translation=\"\" data-trp-gettext=\"\">Le prix actuel est : &#036;839.99.<\/span><\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/li><li class=\"wc-block-grid__product\">\n\t\t\t\t<a href=\"https:\/\/www.jammersignal.com\/fr\/produit\/6antennas-cell-phone-jamming-device-wifi-gps-gsm\/\" class=\"wc-block-grid__product-link\">\n\t\t\t\t\t<div class=\"wc-block-grid__product-onsale\">\n\t\t\t<span aria-hidden=\"true\" data-no-translation=\"\" data-trp-gettext=\"\">Vente<\/span>\n\t\t\t<span class=\"screen-reader-text\" data-no-translation=\"\" data-trp-gettext=\"\">Produit en vente<\/span>\n\t\t<\/div>\n\t\t\t\t\t<div class=\"wc-block-grid__product-image\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/6-antennas-cell-jammersignal-device-jamming-signal-jammers-5-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"6 antennes cellule jammersignal dispositif de brouillage signal brouilleurs (5)\" srcset=\"https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/6-antennas-cell-jammersignal-device-jamming-signal-jammers-5-300x300.jpg 300w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/6-antennas-cell-jammersignal-device-jamming-signal-jammers-5-150x150.jpg 150w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/6-antennas-cell-jammersignal-device-jamming-signal-jammers-5-100x100.jpg 100w, https:\/\/www.jammersignal.com\/wp-content\/uploads\/2024\/05\/6-antennas-cell-jammersignal-device-jamming-signal-jammers-5.jpg 550w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t\t\t\t<div class=\"wc-block-grid__product-title\">6 Antennes Brouilleur de Signal pour T\u00e9l\u00e9phone Cellulaire WIFI GPS GSM 3G CDMA DCS 4G<\/div>\n\t\t\t\t<\/a>\n\t\t\t\t<div class=\"wc-block-grid__product-price price\"><del aria-hidden=\"true\"><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&#036;<\/span>429.00<\/span><\/del> <span class=\"screen-reader-text\" data-no-translation=\"\" data-trp-gettext=\"\">Le prix original \u00e9tait : &#036;429.00.<\/span><ins aria-hidden=\"true\"><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&#036;<\/span>199.99<\/span><\/ins><span class=\"screen-reader-text\" data-no-translation=\"\" data-trp-gettext=\"\">Le prix actuel est : &#036;199.99.<\/span><\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/li><\/ul><\/div>","protected":false},"excerpt":{"rendered":"<p>Un brouilleur de signal de t\u00e9l\u00e9phone portable peut-il p\u00e9n\u00e9trer dans un mur ? De nombreuses personnes se demandent si un brouilleur de t\u00e9l\u00e9phone portable peut p\u00e9n\u00e9trer dans un mur, et cette question n\u00e9cessite la prise en compte de plusieurs facteurs. Tout d'abord, examinons le brouilleur lui-m\u00eame. La fonction du brouilleur est d'\u00e9mettre un signal radiofr\u00e9quence sp\u00e9cial pour interf\u00e9rer avec le [...]<\/p>","protected":false},"author":1,"featured_media":1657,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[99],"tags":[],"class_list":["post-3094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-signal-jammer-information"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Can the jammer that blocks mobile phone signals penetrate walls? 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