Razer DeathAdder V2 Pro gaming mouse You will probably agree that the Razer DeathAdder is the best mouse of all time. Now here is an improved version of the Razer DeathAdder V2 - a wireless mouse for professional gamers - unlimited comfort for increased freedom of movement and maximum control - this is just a small list of what the Razer DeathAdder V2 has to offer. Yes, it's not a cheap device but trust us the Razer DeathAdder V2 deserves every penny paid for it.