【Hi-Fi Stereo Sound and Built-in HD Microphone】40mm drivers can provide dynamic forward facing sound with impressive bass response and help you lose yourself in music whether at home, school or travelling. The in-line microphone is convenient for hands-free calls, remote lessons and zoom meetings. (Note: microphone function does not support PC) Comfortable design and adjustable fit: soft protein leather and memory foam ear pads fit perfectly on your ears, provide excellent comfort and make them ideal for all-day use. The easily adjustable headband allows you to get the perfect fit for a carefree listening experience 【Foldable Design and Portable for Travel】With swivel ear cups, the lightweight headphones can lie flat and compactly stowed away to easily store in bags, purses, bags or suitcases. Stay tidy and organised in the office or enjoy portable comfort on road rides, buses, planes and car trips 【UNIVERSAL COMPATIBILITY AND ANTI-BANGE SPRING 】 The sturdy and durable 3.5mm audio jack works perfectly with almost all smartphones, tablets, laptops, iPad, iPods, PCs and other devices with a single 3.5mm audio port. A spring near the connector prevents the wire from bending to live longer Durable material and customer service: Excellent workmanship quality and robust construction last longer than other headphones