The host adopts a new mini design concept, with a metal aluminum exterior and laser silk screen printing. The solid appearance is particularly stylish, simple and generous, easy to carry and install. It can be moved to any corner of the control room or venue, or quickly fixed on the ceiling and wall of the venue. The system uses a new generation of MCU processors. Although it is small in size, it is powerful. One host can process up to 1,000 voting unit data. The antenna interface ANT can be used with a short rod antenna or an external antenna. The wide-viewing angle and high-definition OLCD display can display the working channel, the number of scans, and the number of real-time online voting devices.