I received a new replacement under warranty, but I am selling these because I purchased new earphones. ------ These are the popular Anker Soundcore Liberty 4 true wireless earbuds. They offer high-quality sound and many features, making them suitable for everyday use, commuting, attending school, and remote meetings. 【Brand new, unopened】 Key Features • Supports Hi-Res Audio (Hi-Res Wireless certified) • Equipped with Ultra Noise Cancelling 2.0 • ACAA 3.0 dual drivers for delicate and powerful sound • 3D Audio compatible (360° spatial audio experience) • Up to 28 hours of playback (with case) • Multipoint connection (connect to smartphone & PC simultaneously) • Noise-reduction microphone for clear calls • IPX4 water resistance (safe for sports and rain) • CloudComfort ear tips for comfortable fit • Health monitoring function Condition • Brand new, unopened • Accessories: Charging case, earbud units, ear tips Anker Soundcore Liberty 4 (Bluetooth 5.3) [True Wireless Earbuds / Ultra Noise Cancelling 2.0 / 3D Audio / Wireless Charging / Multipoint Connection / Ambient Sound Mode / Up to 28 hours of playback / Hi-Res / IPX4 Waterproof Rating / Health Monitoring / PSE Technical Standards Compliant] Midnight Black