ESP32-WROOM-32 Module, support Wi-Fi and BLE. The display turn off after 1 minute without operation, and you can wake up the screen by pressing any key to avoid light pollution. By double-clicking the USER key, allows you to switch to a desktop clock mode with the BTC Lottery runs in the background. Specially optimized algorithm firmware enhances the hashrate to 411KH/s, increasing the probability of winning the lottery by 680% ( v2 only 55KH/s). Optimized Software that achieves a higher Harshrate of 411KH/s.