Apple AirPods (2nd Gen) LEFT Replacement Earbud Piece - Genuine - Model A2031 -Both sound & charge work. This listing is for the AirPods Left Earbud only. It is to replace your original lost or non-working AirPods (2nd Generation) earbud to make a complete functioning set once again. This Apple AirPods Left Earbud works with a genuine Apple charging case only - and will NOT work with any other charging case, or right earbud piece if items are not authentic Apple products. Brand: Apple Original, 100% Authentic Wireless Technology: Bluetooth Form Factor: In-Ear Model: A2031 Quantity: Single Piece, Left AirPod 2nd Generation Condition: No issues. Both Sound & Charge Work. Normal cosmetic wear as expected from normal usage. The serial number on the earbud has faded as shown in pic; however, the serial # does appear in the settings, please see pic. AirPod Replacement Piece - LEFT Side Only! This is a genuine original Apple AirPod Earbud. Buy with Confidence! Coloring may vary slightly due to camera & lighting. Note: If you have trouble pairing with your device, send me a message to help troubleshoot the issue. I will do my best to respond quickly & help resolve any problems or concerns.