Specially optimized algorithm firmware enhances the hashrate to 411KH/s, increasing performance compared to previous models. The display turns off after 1 minute without operation and can be reactivated by pressing any key to reduce light pollution. By double-clicking the USER key, users can switch to a desktop clock mode while the BTC lottery runs in the background. ESP32-WROOM-32 module supports Wi-Fi and BLE connectivity. Optimized software achieves a hashrate of 411KH/s. Standalone design allows it to function as a BTC lottery miner directly over WiFi without requiring an external computer. Embedded system offers low cost, low maintenance, high availability, high reliability, and low power consumption. Supports both solo and pool mining operations. Features an ESP32-S3R8 MCU Wi-Fi microcontroller on board. Master chip: ESP32-WROOM-32. Wi-Fi: 802.11 b/g. Bluetooth: Bluetooth LE 4.2. Hardware resources include UART, SPI, SDIO, I2C, PWM, I2S, and ADC. Memory configuration: 384KB ROM, 512KB RAM, 16KB SRAM, 8MB SiP Flash. Interface: Type-C USB. GPIO: 22 pins. Antenna gain: Board antenna, 2dBi. Product appearance and printed text may vary by batch, but this does not affect functionality. Color: As shown. Material: PCB + Plastic. Package contents: 2 x Solo Lottery Miner, 2 x USB Cable (cable color is random and cannot be specified). Only the listed items are included; other products are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3cm.