We will ship within 24 hours of payment. * Pre-inspection and alcohol disinfection performed. * Re-pairing instructions will be provided at the time of shipment. * Returns and refunds are available for initial defects. Please consider this if you are having trouble with a malfunction or loss. ■ Product Earfun Air Pro 4 Right earphone only ■ Confirmed Operation The following operations have been confirmed to be working properly: * Charging with the original charging case. * Bluetooth connection with Android smartphones and connection with the dedicated app. * Audio output via smartphone music playback → Left it for 2 hours, and confirmed that the audio output continued after 2 hours. * Earphone tap operation ■ Condition There are some scratches, so please check the condition in the photos. ■ Shipping Shipping will be done within 24 hours of payment. After alcohol disinfection, we will wrap it with bubble wrap and a plastic bag to prevent damage and water damage before shipping. ■ Returns and Refunds If there is an initial defect regarding the confirmed operations, we will accept returns and refunds, so please contact us without rating the item. Please note that the buyer is responsible for the return shipping costs. ■ Used Goods Dealer License Used Goods Dealer Permit Chiba Prefectural Public Safety Commission No. 441120001436