Wireless headphones WH-H810 boast a battery life of up to 30 hours. - Model Name: WH-H810 - Type: Wireless Headphones - Color: Ash Gray - Bluetooth Version: Bluetooth 5.0 - Battery Life: Up to 30 hours - Supported Codecs: LDAC, DSEE HX --------------------------------------------------- Thank you for viewing! The shrink wrap has been removed, but this is a new, unopened item. There is a slight dent on the corner of the box, please check the images. Please refer to the manufacturer's product page for product specifications and details. Since this is a new, unopened item, the operation has not been checked. As I am an individual consumer, I cannot handle initial defects. If you are concerned about initial defects, please purchase a new one at the regular price from a retailer. Please understand that we cannot accept returns or refunds before proceeding with the purchase. Please complete the purchase and payment within 24 hours of the purchase process.