["The Fanvil KT10 is a compact, battery-free wireless button based on kinetic energy technology. It can be easily paired with Fanvil devices such as the Y501/Y501-Y Healthcare Intercom and the X305 Big Button IP Phone and enables contactless control or emergency calls at the touch of a button. “Compact, functional and maintenance-free – ideal for health and care environments.” The Fanvil KT10 is the optimal, battery-free addition to emergency call and control solutions in care, health and safety - compact, robust and ready for immediate use", "No battery: energy through pressure – maintenance-free", "433 MHz radio – range inside up to 25 m, outside up to 130 m", "Over 100,000 printing cycles – durable and reliable", "Compact design (21 × 51.6 × 18.5 mm) - space saving", "Robust & easy to assemble – fits healthcare products such as Y501, X305 and much more"]