?Built-in LED Slot & Durable Lifespan? KTT Baby mechanical switches are equipped with LED slots for more possibilities. With the LED slots, the backlights feature shining through. This provides more fun feature and options for those who are DIYers. With a lifespan of approximate 50 million times of keystrokes based on laboratory durability tests; you may rest assured with the long lifespan. ?5-Pin Switches, Convenient for PCB Mount? The KTT Baby mechanical switches are designed 5-pin. They are compatible with the keyboards that supports 5-pin hot-swap, offering satisfying typing experience for hours on end. With 5 pins, it is helpful for installing on PCB mounted keyboards directly and keeping stable without issues. ?Durability Meets Quality: Trust in KTT's Craftsmanship? Crafted with high-quality POM/PC/PA materials and an 18mm spring length, they ensure stability and durability even with prolonged usage. Whether for work, study, or entertainment, the KTT switch series stands as your top choice. ?Precision and Comfort: The Hallmarks of KTT Switches? In the pursuit of the ultimate typing experience and gaming precision, the KTT switch series offers unparalleled accuracy and comfort. Whether it's the smooth linear touch of Baby Yellow or the definitive actuation point of Baby Blue, KTT presents you with exceptional tactile options. ?Iconic Creamy Sound: The Evolution with Baby Series? Creamy sound is one of KTT most iconic swich sound. Baby Series features 3.5mm travel with bottom-out stem, provide an upgrade creamy sound compared to KTT kang white switch. The Baby Series is positioned entry-level, have jelly like looks and zz choice for your first barebone.