A headrest for mounting on a vehicle seat of a vehicle includes a head pillow and an entertainment system. The entertainment system includes a display screen and a communication tool. The communication tool is electrically connected with the display screen, and is arranged to electrically communicate with an external electronic device in such a manner that the communication tool is arranged to electrically link the display screen with the external electronic appliance for establishing an interaction between the display screen and the external electronic appliance, such that a user is able to operate and control the external electronic appliance on the display screen through the communication tool.