thejammerblocker
on April 08 2025 at 07:42 AM public

Tighten the 4 antennas in place (the interface is marked)
Place in a suitable position
Connect the power supply (or the vehicle power supply)
The device works automatically, no settings are required

https://www.thejammerblocker.com/t-us-004-4-bands-2g-3g-cellular-blocker-jammer-with-car-charger/