The Genuine Bose Switching Power Supply PSM36W-208 is a wall charger designed specifically for the Bose Sounddock Series II. This black unit is compatible with various generations and models of Bose devices, including the 1st and 3rd generations. Made of rigid plastic, this power supply is suitable for charging MP3 players and speakers. With its reliable brand reputation and tested functionality, it provides a secure and efficient power source for your portable audio accessories.