The Lenovo headphones deliver excellent sound and adapt to any ear shape. With three unique designs, you will always find the right fit for your ears. The headphones provide outstanding sound through the 3.5mm audio jack of your Think Systems. The integrated controls are compatible with most mainstream smartphones, allowing you to stay connected at the office, at home, and on the go. 3.5mm audio for use with ThinkPads, tablets, workstations, and smartphones. Lightweight design for easy transport on the go.