we designed our Synergy HD Wireless Noise Cancelling Headphones with the Qualcomm® aptX(tm) HD Sound Codec for a truly immersive experience. Enjoy listening to the finer details of your music or movies in high-definition sound with powerful bass and experience the subtle nuances of better than CD quality. Active Noise Cancelling virtually eliminates background noise and allows you to focus on what's important. Turn the ANC off when you need to hear what is happening around you. Our Wireless Headphones were built on the Bluetooth 5.0 platform, allowing our Synergy HD Bluetooth Headphones to communicate as low-energy devices, providing a stronger signal for better stability and improved battery life up to 40 hours. Engineered with USB Type-C charging port and specially formulated battery that supports 2x fast charging. In the rare case that your Wireless Headphones run out of power, a 15-minute quick charge will provide up to 5 hours of use. We designed the ear cushions with a protein leather, sourced from Korea, to simulate the natural feel of leather on your skin. Then we added plush memory foam inner cores, to surround your ears in comfort while providing noise isolation from ambient room noise. Wired and Wireless Mode - Our Wireless Headphones work in both Wireless and Wired Mode with the included USB Type-C to 3.5mm cable. In the rare event that your Over Ear Stereo Headphones run out of power, they can be plugged in and will work in wired mode. We have included an Airplane adapter, so you can relax and listen in true stereo. Optimized for Video Conferencing - our Synergy HD Wireless Over Ear Headphones were designed to work with Zoom, Microsoft Teams, Google Meet, WhatsApp, WebEx, WeChat, Skype and a myriad of conference call applications, so you can connect with your customers or associates and communicate clearly. More from the Manufacturer