1,wireless laser bluetooth mouse 2, slilver and gold color. 3, 800-1600cpi 4 nano receiver slide Mouse luxury 2.4ghz wireless laser slide mouse,slide mouse Featuresoperating frequency is 2.4ghz with laser tracking.battery requirement 1.5v AAA 2 batteries,pls pay attention to polarity marks(+,-) when you load battery.with battery switch and automatic hibernation function.with 800 CPI and 1600 CPI ...