AFTERSHOKZ OPENCOMM Bone Conduction Headset ASC100 [Product Condition] No noticeable scratches or stains. I think the condition is good. I no longer use it because I bought a new one, and I had been storing it. It's in a clean condition. Please purchase if you understand that it is not a new, unused item. Because it is bone conduction, you can use it without blocking your ears. [Product Introduction] ・New price: 22,880 yen ・Bone conduction headset equipped with the "Qualcomm3024" chip that accurately tunes complex sounds. You can enjoy calls and music playback without blocking your ears. ・The microphone is equipped with a DSP noise canceling function. It suppresses background noise and is designed to be heard by the other party, specializing in human voice. ・In addition to Bluetooth V.5.0 wireless communication, it also has NFC (Near Field Communication) function. You can pair it by simply bringing an NFC-compatible device close to it. ●The battery life is up to 8 to 15 hours on a single charge. It can last for 14 days in standby mode. When using OpenComm as an input-only device (for example, hosting a live stream), you can make calls for up to 16 hours. *Battery life has not been verified internally. ●Charging time is about 60 minutes for a full charge. Also, a 5-minute charge allows for up to 2 hours of calls. AfterShokz Bone Conduction Wireless Headphones OPENCOMM Lightweight ASC100 - Color: Black - Model number: OPENCOMM C102 - Battery: Rechargeable lithium polymer battery - Frequency band: 20Hz〜20KHz - Battery capacity: 170mAh - Frequency band: 2402 - 2480MHz - Maximum RF output: 4dBm - Standby time: Up to 14 days - Bluetooth version: Bluetooth v5.0 - Set contents: Wireless stereo bone conduction headset body, magnetic charging cable (1), carrying case Features...Bluetooth Connection type...Wireless [Search terms] Bluetooth earphones, wireless earphones, wireless, bone conduction, microphone, OpenComm Series...OPEN COMM2 Immediate purchase is possible!