Features: Wireless hotspots board has a duplex board with a screen, which can achieve the conversion of digital and analogue signals, providing stable communication connection. Widedly compatibility with P25 YSF DSTAR, designed for RPI ZeroW /2W, 3B+ 4B 4B+ also can use it.Supports multiple digital and analogue communication protocols with high compatibility. Duplex design, supporting both sending and receiving signals. Equipped with a screen for easy operation and monitoring. Wireless connection, easy to carry and use. Specifications: Material: Printed Circuit Board Type: Duplex Board with Screen, Duplex Board with Screen & Housing(optional) Package Includes: 1x Wireless Hotspots Board(2 types optional) note: Other accessories demoed in the pictures are not included. Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.