【High-Performance Battery】 Equipped with a 600mAh charging case, allowing for extended use. 【Compact Design】 Oval design, convenient for carrying. Features a slim and stylish appearance. 【Reliable Brand】 A product of Audio-Technica, highly regarded in audio equipment. - Brand: Audio-Technica I haven't used them much as they don't quite fit my ears, so the condition is quite good. Please be aware of minor dirt or scratches. Everything in the photos is included.