Replacement Bose 20V 20 Volt DC 2 AMP Battery Charger Adapter Adaptor Power Supply for SoundDock Portable Original N123, SoundLink Air and Wireless Bluetooth Digital Music System Player Mobile Speaker Suits: Bose for SoundDock Portable (Original) N123, SoundLink Air, SoundLink Wireless Bluetooth Digital Music System Player / Mobile Speaker etc 20V 10 Ft / 3 Meters Extra Long Cable for easy use 1 Year Warranty