Features: The MMDVM hotspots Board (V1.5.2) enables two band UHF/vhfs communication with support for P25, DSTAR, and POCSAG protocols. Featurings modulars with open source firmwares compatibility, this hotspots board integrates high performances processor, two channel LED status indicators, and connectivitys for NanoPi Duo2. for amateur radio enthusiasts, embeddeds systems developers, and educators seekings platform for digital protocol experimentation and wireless networking projects. Perfect for setting up communication networking in home, outdoor field operations, classroom demonstrations, or emergency backups requiring uninterrupted signal transmission. Engineered for precisions and flexibility, this hotspots board ensures stable two band operation and crosses protocol compatibility, making it for advanced wireless communication setups. Specifications: Materials: Plastic Size: 6.5x3cm/2.56x1.18inch Set Type: Unwelded, Welded(optional) Package Includes: 1Set MMDVM hotspots Board note: Due to the screen setting difference, the item color may slightly differents from the pictures. Please allow slight dimension difference due to differents manual measurement.