Talks Protection

There are 4 products.

Meeting Room Protection

Some recording devices such iPhone 4, 5, SE; many Chinese GSM-bugs are exposed to ultrasound interference to large extend and only one 21XL+ inside the room are enough to suppress them. At the same time, many smart phones and voice recorders have good input filters, and directional "beam" of ultrasound at a distance of 1 - 1.5 meters is needed to block them.

You should also take into account the features of propagation of ultrasound: ultrasound easily reflects from surfaces without skirting them, and, for example, the table top is a serious obstacle for it. Jammer located on the table will only slightly affect the recording unit located directly below the table.

With all this in mind, the best option for meeting room protection is to place 2 jammers in front of each participant: powerful 21XL + under the table and less powerful Desktop on top.