Through the music player volume and tone control water dance beats. Compatible with all music player, for example, MP3/4, mobile phone, computer, and so on. The water will dance up and down in synchronisation with the music while the lights will flash for that extra party effect. Give your home the greatest light show on earth with these ultra-cool dancing water speakers. 100% non-toxic, harmless, environmental protection material. Includes 2 speakers; USB cable and 3.5 mm audio cable. Made from plastic. Gift boxed. Size H22, W8, D8cm. 250 grams. Yes.