Razer Orochi 2015 Review @ Vortez
 

Portable in size, the Orochi looks to notebook users that are often moving around but also want that little extra from their mouse for some side gaming. The Orochi caters for exactly this situation by improving its battery life by up to double over its predecessor due to switching to Bluetooth LE connectivity. This Promises around 60hours of continuous wireless usage, so there is plenty of juice to keep you going in casual circumstances. In wireless mode, the Orochi boasts a modest 8ms response time (125Hz polling), but when you want to get down and serious with some gaming, you can unlock the beast by plugging in the USB cable, resulting in a more gamer friendly 1ms response time.

http://www.vortez.net/review.php?id=1151