Specially optimized algorithm firmware enhances the hashrate to 411KH or s, increasing the probability of winning the lottery by 680 percent (Nerdminer v2 only 55KH or s). The display will 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. ESP32-WROOM-32 Module, support Wi-Fi and BLE. Optimized Software that achieves a higher Harshrate of 411KH or s. Standalone: can work as a BTC lottery miner directly over WiFi. No External computer is needed. Embedded: low cost, low maintenance, high availability, high reliability, low power. Versatile: solo or pool mining. ESP32-S3R8 MCU wifi microcontroller on board. Master Chip: ESP32-WROOM-32 Wi-Fi: 802.11 b or g or n Bluetooth: Bluetooth LE: Bluetooth 4.2 Hardware Resource: UART, SPI, SDIO, I2C, PWM, I2S, ADC Memory: 384KB ROM 512KB SRAM 16KB RTC SRAM 8MB SiP Flash Interface: Type-C USB GPIO: 22 Antenna Gain: Board Antenna, 2dBi The product appearance and printed words may vary depending on the batch, but this does not affect use Colour:As Shown Material:PCBandPlastic Package Contents: 3 x Lotto Machine 3 x USB Cable(The color of the data Cable is random, no specified color is accepted) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.