The Anker Soundcore Life 2 NeoHeadphones include Hi-Res Sound and BassUp technology. It provides sound with a frequency range of up to 40 kHz for the most immersive listening experience. It has been certified with the Hi-Res logo, indicating that it is capable of generating the most precise reproduction of what the artist and producer intended. These headphones are 100 percent, More Bass. The larger 40mm titanium-coated drivers are powered by our patented BassUp technology, a real-time Bass augmentation algorithm. This combo increases the bass output by double it. The Anker Soundcore Life 2 NeoHeadphones have a 60-hour playtime owing to a low-energy consumption Bluetooth chipset and Anker's world-renowned power management technology. Listen for 2 hours every day for a month. Charge for 5 minutes and play for 5 hours. Even if you're in a hurry, you never have to worry about a low battery. Charge using the high-speed USB-C charging connector for added convenience and compatibility. The Soundcore Life 2 Neo Foldable Design by Anker. Folds nicely for simple storage and transportation. Reinforced hinges guarantee maximum durability and dependability. The Anker Soundcore Life 2 NeoHeadphones come in an 18months warranty.