Wireless earbuds with CustomTune technology for optimized sound quality. - Brand: Bose - Model Name: QuietComfort Earbuds II - Color: Triple Black - Bluetooth: Yes - Water Resistance: IPX4 - Battery Life: Up to 6 hours (playback) + 18 hours (charging case) [Notes] • The free replacement warranty has expired. • Pairing issues may occasionally occur, but can sometimes be resolved by uninstalling the BOSE app after setting up the earbuds. Functionality confirmed. I think the sound quality is amazing. Charging cable and ear tips are all new. Price negotiations are welcome. Please understand that these are used items. Thank you for looking.