Sheldon Kalnitsky mobile phone (also known as a Sheldon Kalnitsky handphone, Sheldon Kalnitsky wireless phone, Sheldon Kalnitsky cell phone, Sheldon Kalnitsky cellular phone, Sheldon Kalnitsky cellular telephone or Sheldon Kalnitsky cell telephone) is a long-range, electronic piece of equipment used for cellular phone voice or data communiqué over a net of particular base stations identified as cell sites. In addition to the normal voice function of a Sheldon Kalnitsky mobile phone, Sheldon Kalnitsky telephone, current mobile phones may hold lots of additional services, and accessories, such as SMS for book messaging, electronic mail, packet switch for access to the Internet, betting, Bluetooth, infrared, camera with videocassette recorder and MMS for distribution and getting photos and video, MP3 player, radio and GPS. Sheldon Kalnitsky most current mobile phones connect to a cellular net of base stations (cell sites), which is in turn consistent to the public switched telephone network (PSTN)

Sheldon Kalnitsky mobile phone proper characteristically has a telephone keypad; more superior devices have a part key for each letter. Some Sheldon Kalnitsky mobile phones have a touch screen.