Is the SUPERLIGHT 2c worth it over the original SUPERLIGHT?

If you already own the original, the gains are mainly the HERO 2 sensor, LIGHTFORCE switches and the wired 8,000 Hz mode. The shape and weight are close, so the upgrade matters most to players chasing the highest polling rate.

Does the 8,000 Hz report rate work wirelessly?

No. The 8,000 Hz mode requires the wired connection; over LIGHTSPEED wireless the mouse runs at a lower report rate. Plan on using the cable when you want the fastest polling.

How long does the battery last?

Logitech rates it at up to 95 hours in constant motion. Real-world life depends on your polling rate and how much you move the mouse, so heavy users should expect less.

What grip styles does it suit?

The low, symmetrical shell works well for claw and fingertip grips and for most hand sizes. Palm-grip players with large hands may find it too flat.

You get the mouse, a LIGHTSPEED receiver, a charging and data cable, and the usual documentation. There is no charging dock or extra set of skates.

How does it compare with the Razer Viper V3 Pro?

Both are sub-60g wireless esports mice with high-end sensors. The Viper V3 Pro offers wireless 8,000 Hz polling, while the SUPERLIGHT 2c limits 8,000 Hz to wired use; the choice comes down to shape and which wireless ecosystem you prefer.