Huawei CM33 headphones have a special aluminum finish and will impress you with the volume & sound quality they provide! They are ergonomically designed to conform to your ear shape and provide a long-lasting, comfortable fit so you can enjoy clear sound. The answer-end call key and the volume control buttons with the built-in microphone make it easy to manage calls, and you do not need to answer your device while making headphones much easier. They feature multiple ventilation holes for high-fidelity music and call experience with rich, flexible bass for a calm, warm sound.