B28 is a military intelligence frequency Jammer, which blurs any frequency from 20MHz to 2.500MHz.
This jammer can easily block GSM DCS 3G Cell Phones and is an excellent VHF UHF Walkie Talkie Jammer, and it is much more.
The ideal for preventing terrorist attacks, the jammer at issue can protect exposed and crowded locations such as buses, railway stations, public squares, schools, public peaceful gatherings, big sports events, etc.
- car radio remote controls
- beepers or buzzers
- Walkie Talkies