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-clicking the USER key allows switching to desktop clock mode while BTC mining runs in the background. ESP32-WROOM-32 Module supports Wi-Fi and BLE. Optimized software achieves a higher hashrate of 377KH/s. Standalone design: operates as a BTC miner directly over WiFi without requiring an external computer. Embedded system with low cost, low maintenance, high availability, high reliability, and low power consumption. Supports versatile mining options including solo and pool mining. Features ESP32-S3R8 MCU wifi microcontroller on board. Master Chip: ESP32-WROOM-32 Wi-Fi: 802.11 b/g Bluetooth: Bluetooth LE 4.2 Hardware Resources: UART, SPI, SDIO, I2C, PWM, I2S, ADC Memory: 384KB ROM; 512KB RAM; 16KB SRAM; 8MB SiP Flash Interface: Type-C USB GPIO: 22 Antenna Gain: Board Antenna, 2dBi Color: As shown Material: PCB + Plastic Package Contents: 1 x Solo Lottery Miner 1 x USB Cable (cable color may vary) Only the items listed are included; other products are not included. Note: Lighting and screen differences may cause slight variations in color appearance. Measurement error is +/- 1-3cm.