1. 4 multi-colored LEDs create an incredible light show. 2. Multi-colored water jets make the water dance to the beat. 3. Speakers stand 9" tall and are compatible with any audio device that has a 3.5mm audio jack connection. 4. The liquid using plant oil rather than water is more security non-conducting. 5. The 3.5mm audio input can apply to laptop,desktop,netbook and other devices with 3.5 audio output.As for the USB cable can be used to MP3/MP4 cellphone ,PSP,Ipod and other equipments with 3.5 audio output.