Thank you for viewing! My wife used this product, but she bought new wireless earphones, so I am selling this one. ・Charging and Bluetooth connection (iPhone 16, Google Pixel 4A) have been confirmed. ・Can be fully charged. ⚠️ The pop filter on the sound output part is missing. ⚠️ No charging cable or instruction manual included. ⚠️ Sometimes the left earbud is difficult to charge when placed in the case. Reinserting it will cause the LED to light red, and it will charge. ⚠️ Occasionally, only one side can be heard, but it improved by putting it back in the case and taking it out again, or reconnecting Bluetooth. ⚠️ Please understand that this is a used item before purchasing. There are some minor scratches. The product is waterproof and will be packaged in a clear plastic bag. If you have any questions about the product, please feel free to contact me(^^)/! ※ Please refrain from purchasing if you are concerned about minor scratches or dirt due to amateur handling.