※ The right ear is not working. There is no deterioration in the exterior. Recommended for those who can repair it. ※ Item details are listed below. This is the pink SHOKZ OpenRun Pro, a high-end bone conduction earphone. I used it for a year, about 5 hours a week on a treadmill indoors. Today, the sound stopped coming from the right side while I was using it. I haven't twisted it or given it any strong impacts during its use. I bought it on Mercari, and the seller at the time said it was a replacement for a new one just before the warranty expired, so the warranty itself has expired. The exterior of the earphones has not deteriorated, so I recommend it to those who can repair it themselves. ● Product Description High-end model bone conduction earphones OpenRun Pro SKZ-EP-000010 Pink Brand: Shokz Wearing style: Both ears, integrated left and right Earphone/Headphone type: Neckband type Structure: Bone conduction Color: Pink Wireless/Wired connection: Wireless Earphone/Headphone features: Microphone, Sound quality adjustment, Waterproof, Splash-proof, Remote control Low-frequency range (Hz): 20.0 Hz High-frequency range (kHz): 20.0 kHz Sound pressure sensitivity (db): 105.0 db Wireless standard: Bluetooth Bluetooth codec: SBC IP standard (waterproof standard): IPX5 Charging time: 1.0 hour Weight (g): 29.0 g