HDT ***0b are specially designed for median-size-indoor-space,
such as meeting room, exam room, small church, ward and
dormitory.
This module targets signals of cellphone and WiFi & Bluetooth
(frequencise from **0Mhz to ***0Mhz), with a theoretic jamming
range of *****0 square meters.
Under the white shell, there are 8 high-gain directional antennas
built-in.
The plastic front panel will provide no block for the penetration
of jamming signals.
Its internal antennas shall save you tons of installation time if
you compare this to the modules with external antennas. Simply by
attaching the plug and pressing the switch, HDT ***0b will
automatically start to block target signals within the jamming
range.
Devices like cellphones (2G, 3G and 4G LTE ones) and
WiFi&Bluetooth ones (like iPad and iPod) are not able to
transfer and data or make calls as long as the jammer is
on.
Plus, it is **0% safe and will not do any harm to human beings
around.
