Corsair is a US-based peripherals and hardware company founded in 1994. The M65 is one of the staples in Corsair's gaming mouse roster, and has received a thorough update with the M65 RGB Ultra Wireless. For one, the sensor has been upgraded to Corsair's custom Marksman sensor capable of 26,000 CPI, adjustable in increments of 1 CPI. Furthermore, the M65 RGB Ultra Wireless offers up 2.4 GHz and Bluetooth operation, for up to 90 or 120 hours of battery life (respectively) without illumination. In addition to that, Corsair promises a 2000 Hz polling rate in both wired and 2.4 GHz mode. The integrated weight system allows one to adjust the weight between 109 and 124 g. On the first batch, Omron optical switches are used for the main buttons, whereas later batches will come equipped with TTC optical switches. Speaking of durability, the frame of the M65 RGB Ultra Wireless is made out of aluminium. A six-axis gyro and accelerometer allow for particularly low lift-off distance along with programming tilt gestures, which can be used to execute certain functions upon tilting the mouse in a specific way. These functions, among others, are accessible through iCUE, which the M65 RGB Ultra Wireless of course is compatible with. Lastly, the M65 RGB Ultra Wireless is compatible with NVIDIA Reflex, allowing one to measure click latency in real time on a Reflex-compatible monitor.