This is the first generation BOSE QuietComfort Ultra Earbuds. These are completely wireless earbuds that boast world-class noise cancellation and high-quality, deep sound. With their stylish, cute, and luxurious design and exceptional fit, they elevate your music experience. =========================== ◉ Main Specifications (QuietComfort Ultra Earbuds, 1st Generation) ・Manufacturer: BOSE ・Model Name: QuietComfort Ultra Earbuds ・Bluetooth Version: 5.3 ・Supported Codecs: SBC, AAC ・Playback Time: Up to 6 hours (up to 24 hours including case charging) ・Charging Method: USB-C / Wireless charging compatible ・Noise Cancellation: Active Noise Cancellation (world-class) ・Ambient Sound Mode: Aware Mode supported ・Water Resistance: IPX4 (splashproof) ・Colors: Black / White Smoke / Moonstone Blue, etc. (Please check the photos) ・Weight: Approx. 6.2g per earbud =========================== ◉ Features ・The latest BOSE generation model boasting world-class noise cancellation! ・"CustomTune" spatial audio technology for immersive 360° sound ・Stylish and cute luxury design to make your ears look stylish ・Clear voice calls with call noise reduction function ・Equipped with a wearing detection sensor for automatic play/pause ・ANC and equalizer can be freely adjusted with the dedicated "Bose Music" app ⭕️ I purchased these new about a year ago and have been using them. ・There are scratches on the charging case and the main unit, but there are no issues with use. ・Please contact me if you have any other concerns. ・I am selling these because I purchased other earphones. ・The noise cancellation is still very strong, and these earphones have a very beautiful bass sound.