All Twin pack kits are wireless units. Although the term 'Twin Packs' is used, there is in fact no limit to the number of chimes that can be used with a single bell push button. The bell push button sends out a wireless signal and any number of chimes can detect that signal. With many of the kits shown, there is the option to purchase additional chime units from our website.
* Click on Images below, or Product Name, for more detail
