käsikäyttöisillä

käsikäyttöisillä is a Finnish word that translates to "manually operated" or "hand-operated" in English. It is used to describe devices, tools, or systems that are powered and controlled by human physical effort rather than by an engine, motor, or automated system. This term can encompass a wide range of objects, from simple hand tools like saws and drills to more complex mechanisms such as manual window cranks, hand-operated pumps, or even manual wheelchairs. The core concept is that the user directly interacts with the object to initiate and maintain its function. This contrasts with "moottorikäyttöisillä" (motor-operated) or "automaattisilla" (automatic) alternatives. Devices described as käsikäyttöisillä often require more physical exertion from the user but can offer advantages such as greater control, portability, silence, and independence from external power sources. In many contexts, especially in historical or traditional settings, käsikäyttöisillä items were the norm before the widespread adoption of powered machinery.