Specially optimized algorithm firmware enhances the hashrate to 377KH/s. The display turns off after 1 minute without operation and can be reactivated by pressing any key to reduce light pollution. Double-click the USER key to switch to desktop clock mode while BTC mining continues in the background. ESP32-WROOM-32 Module supports Wi-Fi and Bluetooth Low Energy. Optimized software achieves a higher hashrate of 377KH/s. Standalone design allows direct operation as a BTC miner over Wi-Fi without requiring an external computer. Embedded system offers low cost, low maintenance, high availability, high reliability, and low power consumption. Supports versatile mining options including solo and pool mining. Features an ESP32-S3R8 MCU Wi-Fi microcontroller on board. Main chip: ESP32-WROOM-32 Wi-Fi: 802.11 b/g Bluetooth: BLE 4.2 Hardware interfaces include UART, SPI, SDIO, I2C, PWM, I2S, and ADC Memory: 384KB ROM; 512KB RAM; 16KB SRAM; 8MB SiP Flash Interface: Type-C USB GPIO: 22 pins Antenna gain: Board antenna, 2dBi Color: As shown Material: PCB + Plastic Package Contents: 1 x Solo Lottery Miner 1 x USB Cable (color of cable may vary) Only the above package content is included; other items are not part of this product. Note: Lighting and display differences may cause slight variations between the product color in images and actual color. Measurement tolerance is +/- 1-3cm.