Reference price: 19,980 yen Before considering a purchase, please be sure to check the profile section and product description. If you have any questions, please comment beforehand, and we kindly request that you proceed with the purchase after you are satisfied. This product is new and unopened. Please note that even if a warranty card is included, the manufacturer's warranty will not apply. Also, there is no proof of purchase. Please check the contents of the product as soon as it arrives. Please confirm that there are no problems with the product and that there are no missing items before pressing the "receive confirmation" button. As this is an unused item, we cannot accept returns or claims due to product-related reasons or customer-related reasons. Please be aware of this beforehand. The following is an excerpt from the manufacturer's information: The following is from the official website: [Easy Conversation] The sound collector collects and delivers the sound of conversations. Even if you have difficulty hearing or are far away from the person you are talking to, you can have a smooth conversation without raising your voice. Also, by placing the sound collector in front of the TV, you can collect the TV's audio, so you don't have to watch TV at an "extremely loud volume." *Due to the characteristics of general bone conduction headphones, transmission may be difficult for those who have difficulty hearing due to the effects of the inner ear. This product is designed to support those with 25db to 40db (mild) hearing loss. [Easy Operation] Simply long-press the power button. The device will notify you with a voice when it turns on. Also, no app is required, and Bluetooth connection is easy. [Equipped with Frequency Control Function] Each time you press the sound collector twice, you can control the frequency in three stages. You can adjust it to make it easier to hear when you have difficulty hearing high or low sounds. [We focused on ease of use] Can be used as Bluetooth bone conduction headphones. Because it doesn't block your ears, you can enjoy running, cycling, etc., without shutting out the surrounding sounds. [Long-lasting Battery] With a maximum continuous usage time of about 10 hours, it's perfect for travel. Also, the temple part of the headphones is flexible, and the part that touches the ear rotates, making it easy to fit. If the sound collector (microphone) picks up the sound emitted from the earphones, and the sound collector picks it up again, a sound loop will occur, resulting in a loud noise as howling. In that case, adjust the distance and direction between the sound collector and the earphones, or adjust the volume.