1.Button mute design mute left and right buttons ,rubber roller skates ,whether in a quiet office or studying at night ,creates a quiet and comfortable environment for you
2.Build in 500 mAh lithium battery ,which can be used for several months on a single charge without repeated battery replacement ,and its environmentally friendly and easy to use
3. Slim design , skin friendly and symmetrical curved surface design to fits curve of hand better
4. 2.4G wireless Transmission that supports all computers with wireless connection distance up to 10m , free movement and stable transmission