The Rival 710 by Steelseries uses an Optical sensor from SteelSeries, specifically the TrueMove3, providing a DPI/CPI range of 100 - 12000 in 100 CPI Increments. This results in a tracking speed of 350+ IPS, and a maximum acceleration of 50G. It uses a USB connection with a 1 m non-braided, 2 m braided cable. It weighs in at 135 g grams with the cable and is approximately 124.8 x 72.6 x 42 mm (LxWxH).
Shock 3D 7.1
The Shock 3D 7.1 by ThermalTake is a 3D 7.1 Surround Sound channel gaming headset, which uses a 40MM Neodymium driver. It uses a USB connection with a 2m cable. This delivers a frequency response of 20 HZ - 20 KHZ and a sensitivity of 92 DB AT 1K HZ. It also has a Omni-directional microphone with a frequency response of 100HZ - 10 KHZ and a sensitivity of -35 +/- 3DB.