B&N001 Ultrathin Silent No-Light 1600DPI Bluetooth V3.0 Wireless Mouse - Black (2 x AAA)
Wireless carrier frequency: 2402MHz~2480MHz; Product features: 1. Fashionable ultra-thin design more delicate and good-looking; 2. Four buttons one is the DPI switch button; 3. Adopt the Bluetooth wireless technology transmission which needs no USB interface; 4. Adopt the super silent micro-operation key very silent during working.