· The Claurus FX2 by Silynx is the real reference of this PTT. · Although it has the real model's volume control buttons this function is not available as these are merely decorative. · Another difference with the real model is the output to the headset, which uses a military plug rather than fixed headphones, which provides us many more options when choosing the headset. · This model is available for Motorola, Kenwood, Icom, Yaesu and Midland connectors and for mobile phones. It incorporates a Velcro strap and a metal clip for mounting it on the vest. · The PTT combat replica by Atlantic Signal is a hybrid amongst the "K" style push-buttons of this brand but with a protruding front button. · It has two buttons, one at the front and one at the side, to establish communication, which facilitates activating them individually regardless of the hand we use. · The output to the headset is through a military type connector, highlighted in striking red colour of the cable that stands out from our camouflage kit (an issue easily solved with black duct tape). · The radio connection is available for Motorola, Kenwood, Icom, Yaesu and Midland connectors and for mobile phones.