Want to increase the sound volume of your touch pad or the like? This is for units that have the speaker on the bottom of the unit. Try this neat trick. Take a length of about seven inches of one inch diameter pvc pipe. Your size may vary, Most hardware stores carry pvc pipe, but you might have to get a long piece just to make a short piece. I had about a two foot long piece already, Cut a groove in the pipe just wide enough to insert your pad. You probably do not want it too tight. You will also need two elbows. I just used right hand elbows as they were a lot cheaper than the slight angled ones. Press the two elbows on each end. Get your music going on your touch pad and insert it. You should have more than twice the volume without using any kind of electronics with your new megaphone!!