Function: Builtin power button enables easy on/off control without removing the battery, simplifying operation and reducing wear. Size: Compact design that fits standard button battery slots in small devices. Material: Constructed from durable materials to withstand frequent use and provide a long service life. Performance: Optimized contact design delivers a secure battery connection for reliable power delivery and minimizes malfunctions caused by poor contact. Compatibility: Specifically designed for button batteries; suitable for replacing batteries in remote controls, electronics, and other small devices. Use scenarios: Remote controls for TVs, sound systems, and other home electronics, where quick power cycles without battery removal are beneficial. Small electronic devices such as calculators, digital thermometers, wearables, and compact gadgets that use button batteries. Toys, key fobs, and novelty items that rely on button batteries, offering dependable operation and easier maintenance.