Features: 32-bit ARM processor, complete assembly and test of high-performance. Support DMR, P25, Dstar- and system fusion-, on-board display status (TX-, RX-, PTT, modes) RF-power to 10MW; SMA- antenna connector, including UHF antenna Installed on all current Raspberry Pi including TT-part . Firmware is preloaded and can be easily upgraded through software. Please do not upgrade- your firmware Open source 3D printable case- available. Specifications: Processor:32-bit ARM RF-power: up to 10MW SMA antenna connector UHF430-450MHz, 43MHz and 900MHz VHF 144 220 Opera-FRQ Support and test PI-STAR PCB-board Size:approx 7x3cm/2.76x1.18in Case-Size:approx 6.6x3.2x2.2cm/2.6x1.26x0.87in Antenna Length:approx 8x1CM/3.15x0.39in Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Set x Expansion Board