Floating Wireless Speaker

From the website:

Floating Wireless Speaker

This floating speaker communicates wirelessly with a transmitter connected to any audio source, allowing you to listen to music in your pool.

The transmitter works with any audio source with a 3.5 mm headphone jack including iPods, radios and most MP3 players, and uses the 900Mhz band.

You can select from three channels to provide an interference-free signal for the speaker up to 150 feet away.

The 6-inch-diameter 5-watt speaker is housed in a floating, fully-submersible (up to 3 feet), weatherproof ABS-and-rubber case with controls for power and volume.

The speaker has two blue LED mood lights that cast their glow over the water at night.

Six AA batteries (required) power the speaker for up to six hours; the transmitter requires four AA batteries or can be plugged into AC using the included adapter (batteries not included).

Supports up to nine additional speakers.

Transmitter: 4"H x 3"W x 3"D.

Speaker: 6" sphere.

$179.95.