Reliable 2.4Ghz lenovo pro unified usb receiver, dual bluetooth 5.3 95% Post-consumer recycled plastic materials including 20% reclaimed from lenovo own products customization software tool: lenovo accessories and display manager aes-128 encryption to protect your security low-profile, 3-zone silent keyboard for effortless typing led indicator for keyboard: low-battery, capslock, numlock, 3*device switch one-touch dedicated media controls f1-f12 keys for productivity adjustable tilt leg and spill-resistant keyboard design full-size ambidextrous mouse offers silent buttons 4 mouse buttons: left right-click, scroll-wheel with middle click, dpi 4-way scroll wheel for max control up down left right mouse high precision click, dpi up to 4000, 3-level dpi setting up to 36 months battery life for both keyboard and mouse may vary based on usage enjoy total peace of mind thanks to the 3 years warranty. Crafted for professionals, keyboard &mouse deliver unrivaled functionality, comfort, and style. The sleek, responsive keyboard ensures a silent typing experience, while the standard-sized, ambidextrous silent mouse offers ergonomic comfort and precise control. Seamlessly connect to up to 3 devices via bluetooth 5.3 And 2.4Ghz for rock-solid reliability perfect for boosting productivity across all your devices. Keyboard certification cbtuv markcectuvusfccicimdawpcbissirimnbtc-sdocsdppintcaititrcnccbsmimsipvccijrfkvaliteticasatrantramocptaicteqmbocraarctetancapotrazetc. Security algor...