This device works by confirming transactions on the Lightning Network, the second layer of Bitcoin, not mining, so it consumes less electricity. It rewards $25 for every 10, 000 transactions or $100 for every 1, 000 transactions. You can withdraw your reward in Bitcoin or other popular cryptocurrencies such as Ethereum, Litecoin, Dogecoin, Pence, or Matic, Solana, DOT, Avax, Tron, and Riel.