NiceTQ Replacement Home Wall AC Power Adapter Charger + USB Cable Cord for BOSE QuietComfort 20 / QC20 / QuietComfort 20i / QC20i Headphone Replacement High Quality AC Wall Charger + USB Charging Data Cable Compatible with BOSE QuietComfort 20 / QC20 / QuietComfort 20i / QC20i Headphone Output: DC5v, 1000mA max Cable Length: 3 feet