{"id":39771,"date":"2026-04-29T09:48:01","date_gmt":"2026-04-29T07:48:01","guid":{"rendered":"https:\/\/cryptsec.se\/?post_type=product&#038;p=39771"},"modified":"2026-04-29T09:49:29","modified_gmt":"2026-04-29T07:49:29","slug":"mr-series-ultra-slim-tactical-audio-surveillance","status":"publish","type":"product","link":"https:\/\/cryptsec.se\/sv\/product\/mr-series-ultra-slim-tactical-audio-surveillance\/","title":{"rendered":"MR-Series: Ultra-Slim Tactical Audio Surveillance"},"content":{"rendered":"<p data-path-to-node=\"3\">For security professionals and private individuals requiring absolute discretion, the MR-series offers a &#8220;hide-anywhere&#8221; form factor. These devices are designed to be tucked into wallet card slots, taped under desks, or sewn into clothing linings without creating a visible bulge.<\/p>\n<h3 data-path-to-node=\"4\">1. Esonic MR-130: The Low-Profile Specialist<\/h3>\n<p data-path-to-node=\"5\">The <b data-path-to-node=\"5\" data-index-in-node=\"4\">MR-130<\/b> is the entry-point into the ultra-slim category, focusing on a balance between size and ease of use. It is designed for those who need a dedicated recording device that can be deployed in seconds.<\/p>\n<ul data-path-to-node=\"6\">\n<li>\n<p data-path-to-node=\"6,0,0\"><b data-path-to-node=\"6,0,0\" data-index-in-node=\"0\">Physical Stealth:<\/b> Its flat, rectangular design allows it to be placed under a phone case or inside a notebook without being felt.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,1,0\"><b data-path-to-node=\"6,1,0\" data-index-in-node=\"0\">One-Touch Operation:<\/b> Designed for high-stress situations; a single physical switch allows you to start recording by touch alone, without looking at the device.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,2,0\"><b data-path-to-node=\"6,2,0\" data-index-in-node=\"0\">Secure Storage:<\/b> Uses internal flash memory that cannot be accessed without the specific proprietary USB cable, ensuring your data is safe even if the device is found.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"7\">2. Esonic MR-140: The Extended Endurance Monitor<\/h3>\n<p data-path-to-node=\"8\">The <b data-path-to-node=\"8\" data-index-in-node=\"4\">MR-140<\/b> takes the slim architecture of the series and optimizes it for longer missions. It is slightly more robust to accommodate a higher-capacity battery system for multi-day operations.<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\"><b data-path-to-node=\"9,0,0\" data-index-in-node=\"0\">VOS (Voice Operated System):<\/b> Features an advanced voice-triggering mechanism that ignores background noise and only activates when human speech is detected, maximizing battery life.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\"><b data-path-to-node=\"9,1,0\" data-index-in-node=\"0\">Camouflage Versatility:<\/b> Because of its flat profile, it is the ideal choice for &#8220;stationary&#8221; security, such as being taped to the underside of a conference table or hidden behind a bookshelf.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,2,0\"><b data-path-to-node=\"9,2,0\" data-index-in-node=\"0\">Hardened Housing:<\/b> Built with a reinforced casing to protect the internal microphone and circuitry from pressure, making it suitable for concealment inside upholstery or car seats.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"10\">3. Esonic MR-150: The High-Fidelity Micro<\/h3>\n<p data-path-to-node=\"11\">The <b data-path-to-node=\"11\" data-index-in-node=\"4\">MR-150<\/b> is the premium model in this lineup, featuring upgraded microphone components designed to capture clear audio even when the device is &#8220;buried&#8221; under layers of fabric or hidden inside a bag.<\/p>\n<ul data-path-to-node=\"12\">\n<li>\n<p data-path-to-node=\"12,0,0\"><b data-path-to-node=\"12,0,0\" data-index-in-node=\"0\">Enhanced Sensitivity:<\/b> Specifically tuned to overcome the &#8220;muffled&#8221; sound often found when hiding devices. It can &#8220;hear&#8221; through leather or thick cloth with surprising clarity.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"12,1,0\"><b data-path-to-node=\"12,1,0\" data-index-in-node=\"0\">Time-Date Stamping:<\/b> Every file is embedded with a digital timestamp, which is crucial for legal evidence and creating a chronological log of events.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"12,2,0\"><b data-path-to-node=\"12,2,0\" data-index-in-node=\"0\">Minimalist Footprint:<\/b> The smallest and most refined of the three, making it virtually impossible to detect with a physical pat-down if hidden correctly in a garment.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"14\">Comparison: Tactical Deployment Specs<\/h3>\n<table data-path-to-node=\"15\">\n<thead>\n<tr>\n<td><strong>Feature<\/strong><\/td>\n<td><strong>MR-130 (Standard Slim)<\/strong><\/td>\n<td><strong>MR-140 (Extended)<\/strong><\/td>\n<td><strong>MR-150 (Pro-Audio)<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"15,1,0,0\"><b data-path-to-node=\"15,1,0,0\" data-index-in-node=\"0\">Form Factor<\/b><\/span><\/td>\n<td><span data-path-to-node=\"15,1,1,0\">Ultra-Thin Card Style<\/span><\/td>\n<td><span data-path-to-node=\"15,1,2,0\">Slim Rectangular<\/span><\/td>\n<td><span data-path-to-node=\"15,1,3,0\">Miniature Micro-Slim<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"15,2,0,0\"><b data-path-to-node=\"15,2,0,0\" data-index-in-node=\"0\">Best Asset<\/b><\/span><\/td>\n<td><span data-path-to-node=\"15,2,1,0\">Simplicity &amp; Speed<\/span><\/td>\n<td><span data-path-to-node=\"15,2,2,0\">Long Battery\/VOS<\/span><\/td>\n<td><span data-path-to-node=\"15,2,3,0\">Microphone Sensitivity<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"15,3,0,0\"><b data-path-to-node=\"15,3,0,0\" data-index-in-node=\"0\">Concealment<\/b><\/span><\/td>\n<td><span data-path-to-node=\"15,3,1,0\">Wallets, Phone cases<\/span><\/td>\n<td><span data-path-to-node=\"15,3,2,0\">Under furniture, Vehicles<\/span><\/td>\n<td><span data-path-to-node=\"15,3,3,0\">Clothing, Bags, Pockets<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"15,4,0,0\"><b data-path-to-node=\"15,4,0,0\" data-index-in-node=\"0\">Evidence Grade<\/b><\/span><\/td>\n<td><span data-path-to-node=\"15,4,1,0\">Standard Digital<\/span><\/td>\n<td><span data-path-to-node=\"15,4,2,0\">VOS Optimized<\/span><\/td>\n<td><span data-path-to-node=\"15,4,3,0\">Time\/Date Stamped<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"15,5,0,0\"><b data-path-to-node=\"15,5,0,0\" data-index-in-node=\"0\">Detection Risk<\/b><\/span><\/td>\n<td><span data-path-to-node=\"15,5,1,0\"><b data-path-to-node=\"15,5,1,0\" data-index-in-node=\"0\">Near Zero<\/b> (Looks like a battery\/part)<\/span><\/td>\n<td><span data-path-to-node=\"15,5,2,0\"><b data-path-to-node=\"15,5,2,0\" data-index-in-node=\"0\">Near Zero<\/b> (Easy to tape\/hide)<\/span><\/td>\n<td><span data-path-to-node=\"15,5,3,0\"><b data-path-to-node=\"15,5,3,0\" data-index-in-node=\"0\">Zero<\/b> (Can be sewn in)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 data-path-to-node=\"16\">Why the MR-Series is Hard to Find<\/h3>\n<p data-path-to-node=\"17\">These devices are significantly more difficult to detect than standard recorders for several reasons:<\/p>\n<ul data-path-to-node=\"18\">\n<li>\n<p data-path-to-node=\"18,0,0\"><b data-path-to-node=\"18,0,0\" data-index-in-node=\"0\">No Mechanical Movement:<\/b> They are 100% solid-state. There are no moving parts or spinning disks that can be heard by acoustic listening devices.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"18,1,0\"><b data-path-to-node=\"18,1,0\" data-index-in-node=\"0\">Flat Profile:<\/b> Most &#8220;bug&#8221; detectors and visual inspections look for cylindrical or boxy shapes. The MR-series&#8217; flat profile mimics a credit card or a structural component of a bag, allowing it to &#8220;hide in plain sight.&#8221;<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"18,2,0\"><b data-path-to-node=\"18,2,0\" data-index-in-node=\"0\">Non-Radio Frequency:<\/b> Since they do not transmit via Wi-Fi or Bluetooth, they do not trigger RF signal detectors while recording. They are passive &#8220;black boxes&#8221; that remain dark and silent until you retrieve them.<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"19\"><b data-path-to-node=\"19\" data-index-in-node=\"0\">Recommendation:<\/b> Choose the <b data-path-to-node=\"19\" data-index-in-node=\"27\">MR-130<\/b> for simple, everyday protection; the <b data-path-to-node=\"19\" data-index-in-node=\"71\">MR-140<\/b> if you need to leave the device in a room for several days; or the <b data-path-to-node=\"19\" data-index-in-node=\"145\">MR-150<\/b> if you need the highest quality audio for legal or professional evidence.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This series\u2014the <b data-path-to-node=\"0\" data-index-in-node=\"16\">MR-130, MR-140, and MR-150<\/b>\u2014represents the next generation of &#8220;Ultra-Slim&#8221; covert audio technology. While the previous models focused on mimicking office objects like pens or USB drives, the MR-series is designed for <b data-path-to-node=\"0\" data-index-in-node=\"232\">extreme concealability<\/b>. These devices are so thin they can be hidden in places where standard recorders would be immediately discovered.<\/p>\n","protected":false},"featured_media":39777,"template":"","meta":[],"product_brand":[1391],"product_cat":[1213,1212],"product_tag":[1223,1222,1224,1231,1227,1225],"berocket_brand":[1392],"class_list":{"0":"post-39771","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-esonic","7":"product_cat-audio-surveillance","8":"product_cat-covert-surveillance","9":"product_tag-audio-recorder","10":"product_tag-audio-surveillance","11":"product_tag-covert-audio-recorder","12":"product_tag-covert-surveillance","13":"product_tag-hidden-microphone","14":"product_tag-spy-equipment","15":"product_shipping_class-wc-mp-1-17","16":"berocket_brand-esonic","18":"first","19":"instock","20":"taxable","21":"shipping-taxable","22":"purchasable","23":"product-type-variable","24":"has-default-attributes"},"_links":{"self":[{"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/product\/39771","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/media\/39777"}],"wp:attachment":[{"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/media?parent=39771"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/product_brand?post=39771"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/product_cat?post=39771"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/product_tag?post=39771"},{"taxonomy":"berocket_brand","embeddable":true,"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/berocket_brand?post=39771"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}