https://www.jammermfg.com/cell-phone-jammers.html
This PJ-101 Portable 10 Antenna Internet Jammer can effectively block wireless internet, bluetooth, wireless transmission and mobile tracking signals such as mobile location, Google internet location, etc. This handheld signal jammer gives you accuracy and safety. It can also be used in your vehicle for added safety.

This affordable UHF Blocker is only 0.8kg, light and easy to carry. It can also interfere with 1-20M GSM 3G 4G mobile phone WiFi UHF VHF and other signals, and the use range is very wide.https://www.jammermfg.com/portable-10-antennas-phone-blocker-and-wifi-uhf-vhf-signal-jammer.html