Thank you for viewing. Brand: audio-technica - Model name: ATH-CKS50TW The battery lasted for approximately 4 hours of continuous use, with 70% remaining on the left and 65% on the right. The inner box has tears in ○ places. The main unit and accessories are in good condition with no noticeable scratches. I have cleaned the items before listing them. Please note that this is a used item, so no returns or refunds are accepted.