A home appliance and a home appliance system are disclosed. Product information and status information of the home appliance are converted into at least one transmission acoustic signal, and a sound corresponding to the at least one transmission acoustic signal is output to the outside. The product information and status information are formed as a digital signal and stored in a storage device. The digital signal is encoded through a conversion device, and converted into at least one transmission acoustic signal. The at least one transmission acoustic signal is formed as an analog signal. Meanwhile, the at least one transmission acoustic signal can be dividedly formed.