Yapalong 4000 designed by Nautic Devices, is a full duplex solution for keeping teams connected. It was made to be a hands-free solution for recreational and industry use, where push-to-talk and Bluetooth just don’t cut it. The inexpensive device operates on a 900MHz unlicensed ISM band and can transmit data simultaneously (similar to cell phone technology) with up to 8 users and an unlimited amount of listeners. Yapalong’s simple and clean design sets the stage for the future of wireless radio communication systems.