These in ear headphones feature an integrated volume control and microphone. They are compatible with all the USB C devices. The remote includes volume buttons which makes it convenient for the customer to increase or decrease the volume according to the need during a call or when listening to music. The earbuds are specially designed to accurately and easily fit into the ear, whilst a 1.1 m long cable makes it convenient to use these headphones. The headphones have a frequency range of 20-2000 Hz and offer an excellent noise reduction feature. You are able to listen to your favourite music while being able to reduce background noise. The Huawei CM-33 headphones are made of high-quality material and have a glossy finish with ultra-slim volume control. Please note that this product is supplied in Frustration Free Packaging