The mouse gives off a very strong chemical smell, not to mention the stench! I got the mouse for days can "air out" and repeatedly rubbed with a damp cloth and soapy water - but futile. The smell is also in use almost immediately to hand over what absolutely should not be. The so stinking plastics is usually treated with carcinogenic or mutagenic plasticizers, is likely to be well known. I revert to my old MS mouse. That's not as fancy and less ergonomic, but not harmful.
