The RN-42 is a Bluetooth-based wireless module designed to provide an easy way to establish a reliable, low-power, low-cost wireless connection between two different devices. It uses protocol conforming to the Bluetooth 4.2 specification, while supporting data rates up to 1 Mbps in either direction. It is an excellent solution for those who seek long-distance connections, power efficiency, and cost savings. In ROVs, the RN-42 is commonly used to provide remote control and/or command functions, or as an alternative to traditional wired communication.