Griffin SmartShare Headphone Splitter with Individual Volume Control
This indispensable accessory lets you share your music and videos with a friend; great for car trips, plane flights, waiting rooms — anywhere you're in the mood to share. Plug SmartShare into the mini-jack of any iPod, MP3, CD, portable DVD player or laptop computer and invite a friend to a party of two. The best part: each of you gets a volume control slider so you can both listen at the volume level you want.