SPECIFICATIONS: 1. Advanced 2.4GHz wireless connectivity 2. ON/OFF switch 3. ABS material 4. 1 high quality alkaline battery include 5. 1200DPI 6. 5 millions switch
FEATURES: 1. One to one 2.4G technology gives a reliable link 2. 10M wireless range 3. Smart Auto-Sleep mode to save battery HARDWARE DIFFERENCE: 4. Pixart 4202 one to one ID lock wireless solution, can only do ID paring by software. 5. Bulit-in IC 3204, much better line and power saving 6. 22F high quality PCB board 7. PK CELL brand battery > 6 buttons wireless