【Enhanced Stable Connection with Bluetooth 5.0】Upgraded bluetooth 5.0 wireless earbuds enabled devices up to 33 feet away,transfer Data faster in Four times speed and can operate over greater distances than Bluetooth 4.0 or 4.2.Dual high sensitivity antenna deliver steady connection enable the music play and phone call more smooth and clear.Don't worry about losing connection while walking or running 【True Wireless Stereo】True wireless stereo bluetooth earbuds produce enjoyable HD stereo listening experience with deep bass and crystal clear treble.Binaural call wireless earphones built-in dual mic provide real HD communication experience for calling and the included Call Voice Assistant feature makes driving easier. At the same time, CVC8.0 noise canceling and environmental monitoring mode to make the call understandable, audible and efficient. 【One-Step Pairing & 3500mAh Charging case】Pick up 2 bluetooth earbuds from charging box simultaneously,they will connect each other, then pairing with iphone or Android mobile phone automatically.But your device need to select ‘X11’ to activate the bluetooth connection at the first use.The earphones can up to 3 - 4 hours’ music playtime on a single charge.On the go charging case have 3500mAh battery capacity which supports 35 times recharging, gives up to 140 hours of working time. 【Unique in-ear Design】Our wireless headsets adopting a 35° tilted in-ear.Unlike other wireless headphones insert to your ears directly,you can oblique rotate and insert the ear ,they will tightly surround your ears without pressure.We provide various ear size to ensure that the earbud will fit and stay stably in your ears.Unparalleled musical outputs are light and comfortable to wear for long hours with no pain. (54)