Comfy & Fit - The Haylou S30 Bluetooth Over-Ear Headphones feature soft leatherette ear cups designed for a comfortable fit. Ideal for long time work or intense workout sessions Stay connected effortlessly - Both Wired and Wireless connect options, ensuring you never miss a beat, whether in the office or on the go. This headphones features 40 mm dynamic drivers to produce Hi-Res sound in WIRED mode -43dB Hybrid ANC with Multi-Modes - Immerse yourself in crystal-clear sound with Hybrid Active Noise Cancelling, perfect for focusing during work or enjoying music on a noisy traffic like airplane Enjoy up to 80 hours of playtime(45 hours with ANC on) with our wireless noise cancelling headphones, ideal for travel, gym sessions, or workdays Enhanced communication - with built-in MICROPHONE, making S30 over ear noise cancelling headphones perfect for work and calls. Note: If you want to speak while wired, choose the standard version (includes a detachable external micr