Features: Efficient and Stable Wireless Communication: This product adopts MMDVM technology, which is able to support digital communication in a variety of mode, including DSTAR, P25 and more providing users with flexible use. Comprehensive Data Transmission Capability: The hotspot board supports a data transmission rate of up to 1.5Mbps, which can effectively meet fast speed data requirements .The small simple hotspot board with good heat dissipation performances and anti-interference ability, which enhances the durability of the device. Unique antennae design: Equipped with 443 antennae using highly conductives, compared with traditional antennae, its signal receiving and transmitting better, improving the overall communication quality. for Provides excellent platform for radio enthusiasts to experiment and communicate and enjoy different mode of fun. Specifications: Type: MMDVM Expansion Board Equipped with 443 antennae Color: Green Size: about 65x30mm/2.56x1.18in Package Includes: 1PC MMDVM Expansion Board note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.