ENTIRE TOP SURFACE HEATS. Heat: 99 - 120 Fahrenheit. Number of buttons: Right/left top buttons, wheel button, DPI button, forward/backware button, bottom high/low/off heat switch. Maximum tracking speed: 30 IPS (IPS is the speed the sensor can track movement).
Braided Cord does NOT fray. Working voltage : 5V+-0.5V USB heater is safe for computers and people. Working Current: low-280mA, high-580mA. Connect: USB wired. USB 2.0 Connection: Approximately 180cm/70.8 inches long cord. Design: Ergonomic, right-handed adjust for left hand.
Switch: Heat control High/Low/Off slide switch on bottom. Construction: ABS thermoplastic polymer. Product color: All-black on black finish.