Amazon.com: Accessory USA 12V AC/DC Charger Supply for Logitech MM50 Speaker 970173-0403 M/N: 5-0173A S-0173A Portable iPod P018WA1207 Power Cord : Electronics
Logitech mm50 Soundbar für IPod in Frankfurt am Main - Bonames | Lautsprecher & Kopfhörer gebraucht kaufen | eBay Kleinanzeigen
Logitech MM50 speaker system: removing IR sensor. This sensor is always "on", draining the battery in less than a week. I lost the remote, so I have no need for the sensor.
Repaired Logitech mm50 - YouTube
Replacement Logitech MM50 Wireless Speaker Battery | Battery Mart