Specification:Power supply: 2pcs Button Battery operated Working hours: (Approx) 25 30 hours Available LED Colors: Steady colors: red/white/blue/green/purple/yellow/orange Changing colors: Slow RGB, Fast RGB, Slow blue/white, slow ROP. Yellow flickering Materials: Acrylic designs: Mitsubishi Acrylic. Battery compartment: CHIMEI ABS Support mix order! For more information, please contact me from Trade manager(cn209763703) or send emails to me. I will reply you in 12hours! Thanks!