Features 1、For MMDVM DUPLEX RX TX UHF VHF hotspot support for P25/DMR/YSF/NXDN/DMR Slot 1+ Slot 2 + OLED for Raspberry Pi. 2、High-performance 32-bit for ARM processor supporting for DMR/P-25/D-Star and system fusion. 3、Completely assembled and tested, cleanly installed on all current for Raspberry Pi, including for Pi Zero. 4、SMA antenna connector, including UHF/VHF antenna, up to 10mW RF power. 5、Pre-installed firmware, easily upgradeable via software, on-board LEDs for display status.(Tx, Rx, PTT, mode) Specification Features: For MMDVM DUPLEX RX TX UHF VHF hotspot support for P25/DMR/YSF/NXDN/DMR Slot 1+ Slot 2 + OLED for Raspberry Pi. High-performance 32-bit for ARM processor supporting for DMR/P-25/D-Star and system fusion. Completely assembled and tested, cleanly installed on all current for Raspberry Pi, including for Pi Zero. SMA antenna connector, including UHF/VHF antenna, up to 10mW RF power. Pre-installed firmware, easily upgradeable via software, on-board LEDs for display status.(Tx, Rx, PTT, mode) UHF 433 900 MHZ, VHF 144 220 MHZ Opera FREQ. TX, RX different frequencies, support UHF + UHF, UHF + VHF mode. TX, RX is different from Freq, supports UHF + UHF, UHF (RX) + VHF (TX), VHF (TX) + UHF (RX) mode. Support and test with PI-STAR. Specification: Material: ABS PCB Color: Green PCB Size: Approx. 6.5x5.5cm/2.56x2.17inch Package List: 1 x For MMDVM Hotspot Module 2 x 433MHz Antenna 2 x Flat Cable Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.