Audio-Technica ATH-SR5BT Bluetooth Headphones [Tested] *Left Earphone No Audio. Unit has been tested and works except for the left ear cup. No audio comes through on the left hand side of the headphones. The right ear cup is the only one that works. All cushioning is still in very good condition and the headphones can be used either via Bluetooth or auxiliary cord. If there's any questions/concerns please be sure to reach out. Thanks for looking!