Tonor Water Dancing Speakers Upgrade Version 1.Black bases.Colorful water fountain.Amazing visual effects. 2.All necessary connection cords included. (USB cable and 3.5mm audio cable). 3.Compatible with almost all 3.5mm-jack audio devices, such as cellphones, tablet PCs, PC, MP3, PSP, etc. 4.Built-in amplifier, Hi-Fi stereo speakers.Dual track and double-horn. 5. 12 months warranty. 2 months hassle free return policy.