The Sound Grip allows you to enjoy High Quality Stereo Sound with your DS Lite. All of you games will explode with cleaner, crisper and higher volume stereo sound. The Sound Grip easily attaches to your DS Lite without any screws or tools. Sound Grip includes a rechargeable battery pack that can be used as a secondary DS Lite battery when the speaker is not in use. With the included USB cable, you can easily transfer data while the sound grip is in use with your DS Lite.