Brand New Boxed Customised mouse with Crystals Design By Our designer; This High-Quality hand made Product Has Been Embellished Using High-Quality Crystals to Give This Item Sparkle And Shine; Gift Boxed Comes For Storage; Mouse technology detail: Super smooth wheel, High precision 1600 dpi, Optical technology, the top class chip, Nano receiver (USB). 360 degrees at 10 meters wireless transmission. Standby time is up to 24 months. Ergonomic and elegant appearance and outstanding design. Ultra power saving 5 times than an ordinary mouse, the best power management makes you enjoy wireless life without power interruption in a long time. 2.4GHZ wireless technology provides a reliable connection within 360 degrees at 10 meters and will not be affected by any interference. Tracking resolution up to 1600 DPI. For Windows and Mac OS system. 1 AA battery required.