Fully wireless earphones with Hi-Res Audio support and 28-hour battery life. I am selling a new "Sennheiser MOMENTUM True Wireless 4" that I received as a gift from an acquaintance, as I no longer have a need for it. It is in beautiful condition. I have used it, but there are no noticeable scratches, and the number of times used is: - 1 hour / time - Approximately 10 times in total All accessories are included, including the box. Operation has been confirmed, and there are no malfunctions. The ear tips, other than the ones that came with it initially, are unused. All included ear tips (all unused) will be included, so please replace them as you like. Both the main unit and the ear tips have been cleaned with alcohol. Please refrain from purchasing if you are concerned, as this is a used item. Also, I do not accept price negotiations. Thank you for your understanding. - Model Name: Liberty 4 - Brand: soundcore by Anker - Bluetooth Version: Bluetooth 5.3 - Waterproof Rating: IPX4 - Charging Port: USB Type-C - Battery Life: 28 hours (with case) - Sound Quality: Hi-Res Audio Thank you for viewing.