luxurious – adj. very comfortable and expensive : richly appealing

battery – n. a device that is placed inside a machine (such as a clock, toy, or car) to supply it with electrical power

lifespan – n. the amount of time that a living thing lives; the amount of time a machine is expected to operate

customer – n. a person who buys good and services

feature – n. an interesting or important part, quality or ability