{"id":39810,"date":"2026-04-29T11:00:09","date_gmt":"2026-04-29T09:00:09","guid":{"rendered":"https:\/\/cryptsec.se\/?post_type=product&#038;p=39810"},"modified":"2026-04-29T11:00:35","modified_gmt":"2026-04-29T09:00:35","slug":"mq-u350-the-professional-gold-standard-in-usb-surveillance","status":"publish","type":"product","link":"https:\/\/cryptsec.se\/sv\/product\/mq-u350-the-professional-gold-standard-in-usb-surveillance\/","title":{"rendered":"MQ-U350: The Professional Gold Standard in USB Surveillance"},"content":{"rendered":"<p>The <b data-path-to-node=\"1\" data-index-in-node=\"4\">Esonic MQ-U350<\/b> is the ultimate covert audio solution for those who demand high-capacity storage and extreme battery endurance. Disguised as a common USB flash drive, it is engineered to be a silent, permanent fixture in any office or home environment, providing a layer of security that is physically and electronically invisible.<\/p>\n<h3 data-path-to-node=\"3\">Tactical Performance &amp; Capacity Options<\/h3>\n<ul data-path-to-node=\"4\">\n<li>\n<p data-path-to-node=\"4,0,0\"><b data-path-to-node=\"4,0,0\" data-index-in-node=\"0\">Dual-Capacity Versatility:<\/b> Available in <b data-path-to-node=\"4,0,0\" data-index-in-node=\"40\">8GB<\/b> (storing up to 288 hours) or the massive <b data-path-to-node=\"4,0,0\" data-index-in-node=\"85\">64GB<\/b> version (storing up to 2,304 hours). Whether you need short-term evidence or a month-long audio archive, there is a model suited for the mission.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,1,0\"><b data-path-to-node=\"4,1,0\" data-index-in-node=\"0\">Extreme Standby Endurance:<\/b> Featuring the legendary SVOS (Super Voice Operated System), the MQ-U350 can remain in standby mode for up to <b data-path-to-node=\"4,1,0\" data-index-in-node=\"136\">25 days<\/b> on a single charge, only activating when human speech is detected.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,2,0\"><b data-path-to-node=\"4,2,0\" data-index-in-node=\"0\">Continuous Power Mode:<\/b> Unlike wearable devices, the MQ-U350 can record while plugged into a computer or a USB wall charger, allowing for <b data-path-to-node=\"4,2,0\" data-index-in-node=\"137\">indefinite, 24\/7 monitoring<\/b> of a room without ever worrying about battery life.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,3,0\"><b data-path-to-node=\"4,3,0\" data-index-in-node=\"0\">Date &amp; Time Stamping:<\/b> For professional and legal use, each file is embedded with a precise time\/date stamp, ensuring a chronological chain of evidence that is vital for documentation.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"6\">Why the MQ-U350 is Virtually Undetectable<\/h3>\n<ol start=\"1\" data-path-to-node=\"7\">\n<li>\n<p data-path-to-node=\"7,0,0\"><b data-path-to-node=\"7,0,0\" data-index-in-node=\"0\">Perfect Camouflage:<\/b> It functions as a real USB drive. Even if plugged into a computer, it appears as a standard storage device. The recording controls are hidden and require no specialized software to manage.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,1,0\"><b data-path-to-node=\"7,1,0\" data-index-in-node=\"0\">Zero-Signal Security:<\/b> This is a strictly air-gapped device. It emits <b data-path-to-node=\"7,1,0\" data-index-in-node=\"69\">no radio frequencies (RF), Wi-Fi, or Bluetooth signals<\/b>, making it completely immune to electronic bug sweeps and signal detectors.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,2,0\"><b data-path-to-node=\"7,2,0\" data-index-in-node=\"0\">Silent Sentinel:<\/b> The device is 100% solid-state with no moving parts, no flashing lights, and no audible alerts. It remains perfectly dark and silent even while actively capturing audio.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,3,0\"><b data-path-to-node=\"7,3,0\" data-index-in-node=\"0\">Forensic Clarity:<\/b> The high-sensitivity microphone is optimized for voice frequencies, capturing clear dialogue from up to 10 meters away, even if the drive is tucked inside a laptop port.<\/p>\n<\/li>\n<\/ol>\n<h3 data-path-to-node=\"9\">Technical Summary<\/h3>\n<table data-path-to-node=\"10\">\n<thead>\n<tr>\n<td><strong>Feature<\/strong><\/td>\n<td><strong>MQ-U350 (8GB)<\/strong><\/td>\n<td><strong>MQ-U350 (64GB)<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"10,1,0,0\"><b data-path-to-node=\"10,1,0,0\" data-index-in-node=\"0\">Max Audio Storage<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,1,1,0\">288 Hours<\/span><\/td>\n<td><span data-path-to-node=\"10,1,2,0\"><b data-path-to-node=\"10,1,2,0\" data-index-in-node=\"0\">2,304 Hours<\/b><\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,2,0,0\"><b data-path-to-node=\"10,2,0,0\" data-index-in-node=\"0\">Battery (Continuous)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,2,1,0\">~24 Hours<\/span><\/td>\n<td><span data-path-to-node=\"10,2,2,0\">~24 Hours<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,3,0,0\"><b data-path-to-node=\"10,3,0,0\" data-index-in-node=\"0\">Standby (VOS Mode)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,3,1,0\"><b data-path-to-node=\"10,3,1,0\" data-index-in-node=\"0\">Up to 25 Days<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,3,2,0\"><b data-path-to-node=\"10,3,2,0\" data-index-in-node=\"0\">Up to 25 Days<\/b><\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,4,0,0\"><b data-path-to-node=\"10,4,0,0\" data-index-in-node=\"0\">Charging Time<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,4,1,0\">2 Hours<\/span><\/td>\n<td><span data-path-to-node=\"10,4,2,0\">2 Hours<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,5,0,0\"><b data-path-to-node=\"10,5,0,0\" data-index-in-node=\"0\">Detection Risk<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,5,1,0\"><b data-path-to-node=\"10,5,1,0\" data-index-in-node=\"0\">Zero<\/b> (Standard IT hardware)<\/span><\/td>\n<td><span data-path-to-node=\"10,5,2,0\"><b data-path-to-node=\"10,5,2,0\" data-index-in-node=\"0\">Zero<\/b> (Standard IT hardware)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The <b data-path-to-node=\"11\" data-index-in-node=\"17\">Esonic MQ-U350<\/b> is the professional choice for long-term room monitoring. It combines the world\u2019s best standby battery life with a form factor that is never questioned in a professional setting. Choose the <b data-path-to-node=\"11\" data-index-in-node=\"222\">8GB<\/b> for tactical deployments or the <b data-path-to-node=\"11\" data-index-in-node=\"258\">64GB<\/b> for an exhaustive, long-term audio record.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The <b data-path-to-node=\"0\" data-index-in-node=\"4\">MQ-U350<\/b> (8GB\/64GB) is a covert USB-drive recorder featuring a <b data-path-to-node=\"0\" data-index-in-node=\"66\">25-day standby battery<\/b> and up to <b data-path-to-node=\"0\" data-index-in-node=\"99\">2,304 hours<\/b> of storage. It supports indefinite recording when plugged in and remains invisible to bug detectors due to its <b data-path-to-node=\"0\" data-index-in-node=\"222\">air-gapped, zero-RF design<\/b>. With forensic audio quality and no visual or audible alerts, it provides a perfectly camouflaged, silent witness for any environment.<\/p>\n","protected":false},"featured_media":39821,"template":"","meta":[],"product_brand":[1391],"product_cat":[1212,1213],"product_tag":[1223,1222,1224,1231,1226],"berocket_brand":[1392],"class_list":{"0":"post-39810","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-esonic","7":"product_cat-covert-surveillance","8":"product_cat-audio-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-voice-recorder","14":"product_shipping_class-wc-mp-1-17","15":"berocket_brand-esonic","17":"first","18":"instock","19":"taxable","20":"shipping-taxable","21":"purchasable","22":"product-type-variable","23":"has-default-attributes"},"_links":{"self":[{"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/product\/39810","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\/39821"}],"wp:attachment":[{"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/media?parent=39810"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/product_brand?post=39810"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/product_cat?post=39810"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/product_tag?post=39810"},{"taxonomy":"berocket_brand","embeddable":true,"href":"https:\/\/cryptsec.se\/sv\/wp-json\/wp\/v2\/berocket_brand?post=39810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}