DYNAMIC SOUND QUALITY – Made with 40mm drivers, it’s no wonder why these headphones deliver a rich and deep BASS that even and audiophile can appreciate. They also come with a built-in high definition microphone so you can make hands-free calls or listen to music while you work. Foldable Design: The foldable Headband is not only designed for saving your desk space but for carrying in your hand, bag, or any portable case. Depending on your head/ear size/shape Comfortable: The Memory-protein ear cushion simulate human skin texture, ensuring lasting comfort. The softly padded headband allows you to find the perfect fit without constraint. Constant Music: The wireless mode: A built-in 800mAh battery provides up to 13-hrs of music time/15-hr talking time in a single charge. you can also use it as a wired headphone. Hands-Free Calling: The microphone only works in wireless mode. The Blumate M14 Bluetooth headset provides a fast and stable connection with your Bluetooth-enabled devices. Sound Quality: The M14 blumate is a noise cancellation headphone. The enclosed design offers immersive Hi-Fi sound with CSR chip and 40mm driver. Long Playtime: 18 hours playtime per charge at Bluetooth mode. A built-in 800mAh battery won’t allow your headphones to power off, you can enjoy our world without noise for 18 hours’ long.