The iFloat Pool Speaker allows you to enjoy your favorite music in the hot tub or swimming pool. You just need to place the iPod-compatible iFloat Pool Speaker dock up to 150 feet away from the floating pool speaker. The 900MHz wireless pool speaker features 6 water-resistant integral speaker drivers that deliver true stereo audio sound with full depth, clarity and power. This waterproof and weather resistant iPod speaker also provides up to 4-hour of wireless transmission on a single charge. If you are interested, you can purchase the iFloat Pool Speaker for $129.99 at The Sharper Image.