byOne via Amazon offers its 1byOne 8.6" Crystal Circular Super LED Sound-Activated Stage Light, model no. O00QS-0059, for $32.99. Coupon code "2OTAFCT2" cuts it to $25.99. Plus, free shipping applies. It features sound activation, Dmx512 control panel, and red, yellow, green, white, and blue LEDs. Deal ends December 21.