Streamlined appearance 
Teflon mat 
Battery normal use of one year
-The multistage automatic power saving mode .
-Plug and play ,automatic code.
-Ergonomic design ,comfortable hand feeling

TECHNICAL SPECIFICATIONS:
wireless carrier frequency - 2402 MHz -2480 MHz
wireless working channel - 16,automatic frequency hopping
rated operating current - 25 MA @ 1.5 V mouse