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1. Size hanging: 225 * 194 * 78mm (unit: mm);
2. Weight hanging type: 690g;
3. Working voltage: 12V DC;
4. Working current: 2A;
5. Main control chip: 32-bit ARM Cortex-M4, clock frequency 168MHz, supports FPU (Floating Point Unit) and DSP instructions;
6. Memory: 512K FLASH, 192K SRAM;
7. Display screen: Dual screen 3.2-inch, 320 * 480 resolution, TFT screen;
8. Communication methods: TCP/IP standard Ethernet communication, HTTP protocol;
9. Authentication method: Supports local mode, real-time mode, and real-time+local mode;
10. Power amplifier: speaker chip signal output;
11. Speaker: Internal magnetic speaker;
