More from Amazon.com : http://www.amazon.com/gp/product/B00CDB6JFY?tag=purrfectcatdi-20 <br /> <br />'Personal Assistance Voice Dialer II (PAVDII) with Necklace and Wrist Panic Button - No Monthly <br /> <br />Panic Button frequency 43392 MHz Will not interfere with any other electronics or pacemaker <br />Panic Button range 100-150 Feet from base depending on environment <br />Panic Button battery 23A 12V Alkaline battery Included <br />PRO program ONOFF switch control Protects unit from being reprogrammed accidentally <br />Answer incoming calls through the speakerphone by pressing the panic button
