• Equipped with Bluetooth 5.4 & High Efficiency ANC: These wireless earphones use the latest Bluetooth 5.4 technology Compared to conventional Bluetooth 5.3, connection stability and communication speed are significantly improved, effectively reducing dropouts, delays, noise, and call interruptions Equipped with active noise cancelling technology to effectively reduce noise in trains, buses, cafes, offices, and more Clear sound quality allows you to focus on music and calls and relax without worrying about outside noise • Equipped with 1.6 inch (40 mm) Dynamic Driver & Hi-Fi High Sound Quality: The large 1.6 inch (40 mm) dynamic driver provides a balanced reproduction of powerful bass to delicate treble Experience the immersive sensation of being at a live venue, with Hi-Fi technology faithfully capturing even the subtle nuances of musical instruments Supports SBC/AAC codecs, allowing for high-quality music playback even wirelessly Delivering high-quality sound for all daily scenarios, such as commuting, relaxation time, and break time • 【Up to 50 hours of playback & 3 connection modes】Continuous playback for up to 50 hours on a single full charge No frequent charging required, convenient for long outings and travel In addition to Bluetooth wireless, it also supports direct playback via the included 3.5mm wired cable or TF card (sold separately) • Ultra Lightweight & Comfortable to Wear & Foldable: These headphones weigh only 6.99 oz (198 g), greatly reducing the burden on your head The headband adopts an ergonomic design and features a sliding adjustment mechanism that can stretch up to 3 cm, allowing it to be freely adjusted to fit any head size and fully cover the ears Foldable construction for compact storage and portability Perfect for commuting, business trips, home study, and various other occasions Comfortable fit even when wearing glasses • 【IPX5 Waterproof & Built-in Microphone & Easy Operation】Equipped with IPX5-rated waterproof performance, you can use it outdoors without worrying about sweat or light rain in daily life High-sensitivity microphone reduces noise, enabling clear hands-free calls (compatible with remote work and online meetings) Adjust volume, skip tracks, rewind, and answer calls without taking out your smartphone by using the buttons on the ear cups