Bone Conduction Headphones Bluetooth with Microphone Bone Conduction Earphones Bluetooth Waterproof Sports Earphones Running Training Cycling Ear-Free Earphones Bone Conduction Wireless Earphones Bluetooth Earphones Type-C Fast Charging 8 Hours Continuous Use Bone Conduction Headphones Retail Price: ¥3,999 *The main unit has only been used once, and the earplugs have never been used. Brand: Erssimo Color: Black Headphone Type: Ear-hook type Noise Control: Active Noise Cancellation Headphone Jack: USB Everything shown in the images is included. Items not shown are not included. Instant purchase without a message is welcome! If you would like to check the condition of the product from angles other than those in the shipping images, please feel free to ask. *Please be aware that this item is stored in a box and bag in a dark place, but those concerned about personal storage should take caution. *Due to the nature of the product, there may be initial scratches. *Please note that even during message exchanges, the item will be sold to the first person who purchases it.