I'd like to buy "Razer Basilisk V3 Pro" mouse but I noticed all the Reviews (and most shopping sites) on the mouse are showing battery life of the mouse to be "Up to 90 hrs with HyperSpeed" and yet on Razer's official site they changed battery life to "Up to 110 hrs with HyperSpeed".
-Reviews (and most shopping sites) are also showing "up to 100 hours with Bluetooth" but Razer's official site changed it to "Up to 150 hours with Bluetooth"

Why is that?! 

Thank you