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.
Logitech mm50 review: Logitech mm50 - CNET
VideoYug - Logitech MM50 iPod Speaker - YouTube
Source 12V 2A switching adapter for Speaker Logitech MM50 ipod's Speaker System on m.alibaba.com
Review: Logitech mm50 Portable Speakers for iPod | iLounge