[ Breathtaking Music Quality ] - Feel it in the sound. Every breath, note and beat in studio quality. Boltune Wireless Earbuds are meticulously crafted with every fine listening detail considered. Crystal clarity and Deep, resonant bass with delicately tuned sound signature deliver immersive sound and put you on the stage center. [ Impressive 40Hr Playtime ] - Boltune wireless earbuds deliver an industry-leading 7 hr of listening time. And they’re made to keep up with you, thanks to a charging case that holds multiple charges for more than 40 hr of listening time. USB-C offers a more stable and safer way to charge charging case fully in 90 minutes. [ Comfortable Earbuds & IPX8 Waterproof ] - Offers ear tips in 4 sizes for all day ergonomic comfort and superior sound isolation —simply slide in and twist to lock. Built for performance with a IPX8 sweat and water resistance, it even resists water from the tap when you’re washing away the sweat after a hardcore workout. [ Fast Pairing & Bluetooth 5. 0 ] - Fast and easy pairing just by opening up the charging case. You will be in your euphonic music world in a couple of seconds. Bluetooth 5. 0 deliver a faster and more stable wireless connection to your devices. So whether you’re listening to music or enjoying podcasts, you’ll experience higher-quality sound. [ Easy Use ] - A quick start guide is included in the package to help you use Boltune Wireless Earbuds easier. Each earbud can be used independently for better connectivity and freedom of use for music and phone calls. Press and hold the button for three seconds to wake up siri for assistance without having to reach for your iPhone. (85)