Bluetooth 5.1 Technology& Easy Pairing】Adopting the most advanced Bluetooth 5.1 technology. VEHOP Support HSP, HFP, A2DP, AVRCP. Pick up two headsets from charging case and they will pair to each other automatically, then only one step easily enter mobile phone Bluetooth setting to pair the earbuds, which provides in-call stereo sound. Also own fast and stable transmission without tangling. 【IPX7 waterproof] Earbuds inner Nano-coating makes it possible to waterproof for day to day water splashes. Waterproof and sweatproof latest technology can effectively prevent from the damage of the splash by sweat and raindrops. 【Massive 2000 MAH Smart Charging Case/POWERBANK】: Adopts the premium case to protect your wireless earbuds and looks fashionable. With the individual LED display on the case can help check the power of L/R earbud and charging case at any time. The wireless Bluetooth earbuds deliver 6hrs listening time and 3.5hrs talk time on single charge, total 150hrs playtime with massive 2000 MAH charging case/POWERBANK You can also CHARGE YOUR PHONE 【Superior Stereo Sound Quality】: Experience music, movies, podcasts, calls, and more in a whole new way. VEHOP provides a truly authentic sound and powerful bass performance with large size speaker driver – the drive area is 1.9 times than the normal drive area. 【Comfort Fit & Wide Compatibility】：Three sizes of flexible silicone tips with the inter taper, conforming the shape of your ear, securing A1 in place and creating an exceptional seal for superior noise cancellation. Widely compatible with Bluetooth-enabled devices.