TechPowerUp checked out the SteelSeries Aerox 5 Wireless
A quote from the article:
The Aerox 5 Wireless is marketed as a lightweight multi-genre gaming mouse. To this end, the 9-button Aerox 5 Wireless comes with the TrueMove Air sensor, 2.4 GHz and Bluetooth connectivity, and up to 180 hours of battery life, all wrapped into a 73 g lightweight package.SteelSeries Aerox 5 Wireless Review