What does the limited warranty NOT cover?

The warranty does not cover: separate accessories; outdoor exposure and acts of nature; power surges; accidental damage; abuse; cosmetic damage; contact with liquid, heat, humidity, perspiration, sand, smoke, or foreign materials; damage from unauthorized parts or repairs; computer or internet viruses; malfunctions due to peripherals or accessories; unauthorized modifications; consumable parts such as batteries; or products with altered or removed serial numbers.