These jumbo push buttons should stop any misdialing. The jumbo speakerphone comes with the following specification: Hands free speakerphone facility with volume control. Easy to read jumbo buttons. Receiver volume high/normal selector. 10-two touch speed dialing memories. Ringer hi/low switch. Flash function. Last number redial (max. 32). Desktop or wall mountable. In use indicator. Complete with 9 feet of coil cord.