The 900Mhz wireless shower speaker system allows you to take your favorite tunes into the shower with you. This water resistant speaker is powered by 900MHZ PLL circuitry, which guarantees a strong, clear signal up to 150FT away. The transmitter delivers a powerful signal through walls or any other obstacles keeping your player safe from water. Just plug in your iPod, computer, stereo, MP3 player or any other device that has a standard 3.5mm audio output and enjoy high quality music where ever you want. Perfect for the shower singer in all of us