A mobile communication device in a palm-held size housing has a cellular or satellite telephone capable of wireless communication with the Internet and remotely located telephones. The device includes one or more replaceable memory card sockets for receiving a blank memory card for recording data directly from the Internet and, in particular, musical performances that then can be selectively reproduced by the device for the enjoyment of the user, including both audio and visual recordings and reproductions. The device also includes a camera and microphone for recording images and sound within the range of the device that can be wirelessly transmitted, either selectively or automatically to a remote telephone. Further, the device includes sensors for sensing unusual conditions that may also be transmitted to a remote telephone, together with the location of the device as determined by a GPS section of the device. Still further the device includes a connectable stethoscope for detecting and transmitting sounds from the chest of a user to a remote location.