PROFESSIONAL  There is 1 product.

Analogue communication It's a branch of communication which deals with transmission and reception of information signals which are continuous wave signals.

Is a transceiver what meets the requirements for a tough, waterproof communications tool for use in hazardous areas such as oil rigs, areas where flammable gases or liquids are used, and other potentially explosive environments.

PMR 446 (Personal Mobile Radio, 446 MHz) is a radio frequency that is within the UHF spectrum and is open for personal use without a license in most of the member countries of the European Union.

IP RADIO SYSTEM (Full-Duplex Communication That Works Over a Wireless LAN and IP Network)