Customizable Frequency Band Adjustable Wireless Signal Blocker with Thermal Aluminum Shell Design

We've been moving a fair amount of the JM171544 lately, and the thermal alumnum shell is the first thing people notice — it's built to run 24/7 without cooking itself, and at 5kg it's not flimsy, but you can still mount it on a wall if you're clever about the bracket situation.

Actually, adjustable per-band output up to 16W total is what most buyers care about, because you're not stuck blasting everything at full power; you can dial down the WiFi band if you're only trying to knock out GSM and UHF, and that's pretty handy in a conference room or exam hall where you don't want to fry every device in teh building.

So the jamming range is listed at up to 25 meters, but that's under ideal conditions — in a concrete bunker or a metal-lined room you're looking at maybe 10-15 meters, give or take, and we usually tell people to test it on site rather than trust the spec sheet blindly.

Government and military buyers are the bulk of our orders here, but we also see a steady stream of security firms and corporate facilities — one client used it to quiet down a boardroom during sensitive negotiations, which is a use case we didn't think of but it works.

Lead time is typically 20 business days or so, and we require a minimum order of 5 units for the first run, but we can ship smaller quantities if you've got an urgent need and we have stock on the shelf — just confirm before you place the PO.

What it does is block GSM, CDMA, DCS, PCS, WiFi, UHF, VHF, 3G, and 4G, but it's not suited for 5G or satellite signals, so if you need those blocked you're looking at a different unit entirely.