One order I got was labeled as "PC GAME" and got slapped with another 10% import duty due to their sloppiness, also had problems due to them not stating a shipping cost and inaccurate weight. The problem with writing "Bitcoin miner" is that it's not a recognized customs category for goods and 99% of customs worker wont know in what category to put it (hence delays and complications)

Meanwhile labeling a shipment of chocolate chip cookies as chocolate chip cookies is not by the customs standards either, but then 99%+ of all customs workers can figure out what category it belongs to.