1、Supports PI-STAR's web based digital voice dashboard and configuration tool. 2、Large Capacity: Comes with 512Mb DDR3 RAM and 8GB memory card, provides full storage space. 3、SMA Detachable Antenna: Helps to receive strong and clear signal, support 420 - 450MHz UHF. 4、OLED Display Screen: Always show you the system status, such as indicating mode, talk group and call sign. 5、High Performance: Single core 1GHz processor and 32bit ARM processor, allow stable and powerful performance. Description: This is completely a self-contained digital hotspot supporting for DMR, DSTAR, P25 and system combination communications. Fully assembled and tested in a ruggedized aluminum enclosure. All that's required for operation is a mini USB (for android phone's cable) power source and a WiFi based internet connection.   Features: Supports PI-STAR's web based digital voice dashboard and configuration tool. Large Capacity: Comes with 512Mb DDR3 RAM and 8GB memory card, provides full storage space. SMA Detachable Antenna: Helps to receive strong and clear signal, support 420 - 450MHz UHF. Organic LED Display Screen: Always show you the system status, such as indicating mode, talk group and call sign. High Performance: Single core 1GHz processor and 32bit ARM processor, allow stable and powerful performance. System Combination: Supports digital amateur modes for DMR, D-STAR, P25, and YSF. Built-in WiFi: Support 802.11b/g/n wireless protocol. Easy to use: Fully assembled, plug and play. Specifications: Color: Black Processor: Single Core 1GHz + 32bit ARM Memory Capacity: 512Mb DDR3 Ram + 8G Memory Card Frequency: 420 - 450MHz UHF WiFi Protocol: 802.11b/g/n Console Port: SSH 22 Display Screen: Organic LED RF Power: 10MW Size: Approx. 72 x 33 x 23mm/ 2.9 x 1.3 x 0.9in Package Weight: 83g   Package List: 1 x MMDVM Hotspot Board 1 x 43MHz Antenna 1 x 8G Memory Card   Note: The firmware is pre-loaded and can be easily upgraded through software. Please DO NOT update the firmware by yourself.