CONVENIENT MAGNET EARBUDS: Built-in magnet of the Bluetooth headphones attracts the earplugs when you don't used it greatly decreasing the burden on ears and giving you a convenient storage way to carry around.</br>UPDATE BATTERY PERFORMANCE: Powerful rechargeable battery with wireless headphones up to 10 hours of talk time or 13 hours of your favorite music and 18 days extra long standby time.</br>HIGH FIDELITY AUDIO: Hear richer and CD-like sound from wireless headset with the aptX codecCVC 6.0 noise cancellation almost eliminates background noise to ensure high-quality audio when making calls.</br>BLUETOOTH 4.1 CONNECTION: Latest bluetooth technology keep bluetooth headset easy and fast seamless syncing with bluetooth device up to 33fts away.Get a better signal during calls with the upgrade chipest.</br>WIRELESS STABILITY: Built-in latest bluetooth chip provides enhanced audio quality and more stable Bluetooth pairing meaning minimal lost connections.</br></br>Product Description</br></br>coulax Bluetooth headphones make your tunes in vibrant flex memory silicone neckband designed - comfortable experience COULAX headphones use flex memory silicone neck-strap designed?? with its intuitive and fashionable design?? advanced features?? COULAX provides a comfortable?? curved fit.