A wireless communication device with 3 km range. It features two-way communication on 8 channels in PMR range (446 MHz - a license exempt radio frequency for industrial use). Due to 38 subchannels, it is possible that several groups of users communicate using the same channel, without mutual interference. It has an electronic menu system for voice control. The device will shut down after two hours idle time, so as to prolong battery life. There is a possibility of connection with external devices, such as radio devices or mobile phones. It is available with an add-on for a helmet or a neckband. Battery life is around 20 hours. SNR is 32 dB.