Fangrui Product Details Specially Optimized Algorithm Firmware Enhances The Hashrate To 1000kh/s, Increasing The Probability Of Winning The Lottery By 1 (nerdminer V2 Only 55kh/s). 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. Esp32-wroom-32 Module, Support Wi-fi And Ble. 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/pool Mining. Esp32-s3r8 Mcu Wifi Microcontroller On Board. (there Are Fluctuations) (different Batches May Cause Differences In Printing, Which Not Affect The Use Color: As Shown Material: Pcb+acrylic Package Contents: 1 X Solo Lottery Miner 1 X Usb Cable(the Color Of The Data Line 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.