A4TECH G3-300N (BLACK) PADLESS V-TRACK WIRELESS MOUSEProduct Description: Consistent Wireless Stability Advanced 2. 4GHz powerful wireless connection with distance up to 10 15m. Auto Channel stablizing Plug and leave in nano receiver provides essentially no delays or connection conflicts. Up to 12 Months Battery Life Go longer between battery changes with energy efficient engineering. Extreme quality offer over 12 months lifetime guaranteed. Smart Wireless SOC Technology Professional chip ensures longer