Two glaring flaws, but ...
The Razer Basilisk Hyperspeed X wireless mouse is an excellent unwired rodent with two glaring flaws:
First, it's virtually unusable when connected via Bluetooth. Even using BT 5.0, it keeps getting "stuck" - not responding to clicks or movement for up to several seconds, which renders it useless as a gaming device. And annoyingly inconvenient even for quotidian tasks like websurfing, file management, and using menus in productivity programs like spreadsheets and word processors.
The good news is that, using the included "hyperspeed" dongle to connect eliminates that problem. Unfortunately, out of the box, you'll have to upgrade the device's firmware, and you can ONLY do that by creating a Razer user account and logging in to it via Razer's Synapse application to perform the upgrade. Of course, there's no option to keep Razer from selling your personal information to the advertising vampires, so that's customer-hostile by design.
The other glaring flaw is that, should you lose the Hype dongle, you're pretty much SOL, because Razer no longer makes replacments - which will force you to buy another mouse.
Otherwise, though, it feels good in your hand, with just enough mass to it to keep it firmly on the mousepad, and a whole lot of configurable buttons for convenient gaming shortcuts and macros. Oh, and you can save different sets of button definitions for different games. It's also capable of ridiculously-high accuracy, which is useful for both gaming and image editing.
I just wish my puppy hadn't eaten the Hype dongle ...
Verified purchase: YesCondition: New