A cordless phone is a type of telephone that allows users to make and receive calls without being tethered to a wall outlet. It operates using radio signals, connecting the handset to a base station that is plugged into a phone line. This design provides the convenience of mobility within a certain range, typically around 100 to 300 feet indoors. Most cordless phones come with features like caller ID, voicemail, and multiple handsets that can connect to a single base. They are powered by rechargeable batteries, making them easy to use throughout the home or office without the hassle of cords.