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 Left 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 through smartphone music playback → Left it for 2 hours and confirmed that the audio output continued after 2 hours. * Earphone tap operation ■ Condition We have judged it to be in good condition without any noticeable scratches or stains. Please also check the condition in the photos as there may be individual differences. ■ 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 operation, we will accept returns and refunds, so please contact us without giving a rating. 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