Westilfe Onius via Amazon offers the Onikuma Dual-Mode Optical Gaming Mouse for $21.99. Coupon code "72DVPM7P" cuts it to $16.93. With free shipping for Prime members, that's $2 under our mention from five days ago and the lowest price we could find now by around $11. It can be used wired or wireless and features six adjustable DPI levels and six RGB lighting options. Deal ends August 19.