The round edges key caps will allow you to type for a longer sessions without feeling the stress on your fingers. A4 TECH KR Slim USB Keyboard A4 TECH KR Slim USB has most comfortable round key and adjustable legs. A4 TECH KR Slim USB Keyboard has wide functionality which can use for different purpose. A4 TECH KR – Slim USB Keyboard has also relax your finger.This A4 TECH KR Slim USB Keyboard comes with a sleek black chiclet keyboard and and mouse both controlled by a single wireless USB dongle.