About this item 52 Hours Battery Life and LED Charging Display: The charging case features an external LED display that indicates the battery level of the ear buds and charging compartment. These wireless headphones can be used continuously for approximately 8 hours, and the large 600mAh capacity of the charging compartment offers an additional 6 full charges for both earbuds. This extends the total usage time of the headphones to 52 hours. Unparalleled Sound Experience and ENC Noise Cancellation for Clear Calls: The FAMOO wireless earphones utilize 14.2mm graphene drivers to produce refined and distinct mid and high frequencies, while the exclusive bass+ technology enhances bass output by up to 85%. This ensures exceptional bass performance and crisp vocals at any volume level. Additionally, the X15 features advanced ENC ambient noise cancellation technology, equipped with four built-in microphones that effectively eliminate 90% of external noise. This guarantees clear call quality even in noisy environments. Single and Dual Mode Options with Touch Control: Each earphone can be individually connected to a Bluetooth device or paired together. For single-ear use, simply remove the other earphone and it will automatically switch to binaural mode. During usage, you can conveniently control your cell phone by touching either earbud, ensuring a quicker and more convenient experience. Latest Bluetooth 5.3 and One-Step Pairing: Equipped with the latest Bluetooth 5.3 chip in 2023, our ear buds offer significant improvements over Bluetooth 5.0. They reduce signal interference by 65% and enhance transmission speed by 80%. With a super fast 0.1s connection time once open the case, these wireless earbuds will automatically reconnect to your device after the initial pairing. Moreover, this Bluetooth version is highly compatible with iOS, Android, and Windows devices. Lightweight & IPX7 Waterproof: The X15 In-Ear Bluetooth earbuds with Charging Case weighs only 0.07lbs, and each earbud weighs a mere 0.007lbs. It comes with three different sizes of ear cups (S/M/L) to ensure a comfortable and stable fit. Furthermore, X15 wireless earbuds is made of high-quality IPX7 nano-material, which effectively prevents rain and sweat penetration. This extends the headphone's lifespan, making it ideal for running, hiking, or traveling.