Hotspot Board, Long Service Life Digital Board, Industrial Automation Relay Digital Mobile for 3 0 W Model A Specification: Item Type: Wireless hotspot board Basic Setting: 433.5550000MHZ Digital mobile WIFI SSID: GARY / PASSWORD: (Since for Pi 0 W does not support 5.8GHz, 2.4GHz SSID is required) Software: PI-STAR Power Supply: Use the Micro USB for data cable to connect the mobile phone charger or the computer USB port to supply power. If you use it outdoors or in the car, please turn on the mobile phone hotspot to provide network use for the data hotspot.Optional Style: Model A, Model B, Model CModel A: Single Hotspot Expansion Board + Antenna Model B: Single Hotspot Expansion Board+Organic Light-Emitting Diode Screen+ Antenna Model C: Single Hotspot Expansion Board + Organic Light-Emitting Diode Screen + Shell + Antenna Package List: 1 x Hotspot Board 1 x Antenna Accessory Bag Note: 1. All designs will be provided in the Multi-Mode Digital Voice Modem project. 2. Does not support analog USB.