Audio-Technica Wireless Earphones ATH-CKS30TW+ Evergreen Purchased this used from e-earphone in June 2025. I don't know the previous usage, but I've used it for about 10 hours since I bought it. Regarding the battery, it can play continuously for 2 hours. I haven't done any performance tests, so I don't know anything beyond that. Includes only the earphones, charging case, 4 sizes of original ear tips, and an A to C charging cable. No outer box or instruction manual. I will also include a pair of Audio-Technica ear tips, AT-ER500, size M, which I was using. This is a used item. I have cleaned it, but it's a basic cleaning. Please understand this before considering a purchase. Automatically generated text below: Mint green Audio-Technica CKS30TW wireless earphones, with charging case and ear tips. - Brand: Audio-Technica - Model: CKS30TW - Color: Mint Green - Accessories: Charging case, ear tips, USB cable Thank you for viewing.