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.
Product size: 119*67*39mm( 4.68 * 2.63 * 1.53 in).
Product weight: 136g/ 4.8 oz.
Key life: Three Million Times.
Glide Pads: Two level bottom glide pads.
Maximum cursor acceleration speed: 8 G.
Adjustable DPI: 800-1200-2400-3200.