The earbuds have been used for one month. There are no issues. Selling due to lack of use. ____________________ Design and Comfort Open-Ear Design: Does not enter the ear canal, providing superior comfort and a pressure-free listening experience. Flexible and Durable Ear Hooks: Ergonomically designed and made from high-quality 0.7mm titanium memory wire coated with ultra-soft materials for a comfortable and secure fit. Additional Neckband: Comes with a detachable and adjustable strap or neckband for increased stability during intense workouts. ____________________ Sound Quality and Performance Massive Drivers: Feature 16.2mm titanium-coated dynamic drivers to deliver powerful and clear bass. LDAC Support: Supports Hi-Res Audio for rich musical detail transmission to compatible devices. Spatial Audio: Supports true surround sound for an immersive listening experience. Sound Directing Technology: Designed to ensure sound waves reach your ear directly, preventing ambient sound leakage. ____________________ Battery and Charging Battery Life: Provides up to 14 hours of continuous playback on a single charge. Total Playtime: Up to 46 hours of use with the charging case. Fast Charging: Just 10 minutes of charging provides up to 5.5 hours of continuous listening. ____________________ Connectivity and Calls Bluetooth Version: Supports Bluetooth 5.3 for stable and fast wireless connection. Multipoint Connection: Allows pairing and seamless switching between two devices simultaneously. Calls: Equipped with 4 microphones powered by AI algorithms for noise reduction and clear calls. ____________________ Protection and Control Water and Sweat Resistance: Features an IPX5 rating with Soundcore's exclusive SweatGuard technology to protect internal components from heavy sweat and water splashes. Physical Control Buttons: Relies on physical buttons (not touch) for precise and reliable control during fast movements or workouts. Dedicated App: Sound EQ and button settings can be customized via the Soundcore app.