Soundcore Liberty True Wireless Earbuds, 100 Hour Playtime, Graphene Sound, Fast Charging, Secure Fit, Bluetooth 5, Easy Pairing, Sweatproof True Wireless Earbuds with Smart AI, Stereo Handsfree Calls Extreme 100 Hours of Playtime: A single charge gives you a full 8 hours of listening, while the charging case extends it to 100. Expertly Tuned Graphene Drivers: As graphene?s earliest pioneers, we have used our experience to create a new driver for Liberty wireless earphones that takes full advantage of the material?s remarkable properties. 100 times harder than steel and 35% lighter than traditional driver diaphragms, it oscillates with extreme precision to give your music a wider soundstage with exceptional accuracy and crystal-clear clarity across the entire frequency range. Fast-Charging: Charge for 15 minutes and get 2 hours of listening for when you need music in a rush. Rock-Solid Fit: Soundcore?s proprietary GripFit technology enables the wireless headphones to sit securely and comfortably in your ears?simply slide in and twist to lock. Take on an intense workout or navigate city streets knowing your earbuds will stay firmly in place. One-Step Pairing: Simply remove the earbuds from the charging case and they?ll automatically connect to the last paired device. What You Get Liberty Total-Wireless Earphones, Liberty Charging Case, 4 Grip Fit Jackets, 3 Ear Tips, a Micro-USB Cable, and a 18-month.