This iChime Doorbell replaces your current chime and gives you the choice of sounds to announce your visitors. Choose from the pre-programmed selections, record your own tune with the built-in microphone, record using iPod, CD Player, PC, or MP3 with line-in jack. Includes chimes, holiday, halloween, favorites, fun sounds, and special occasion. Announce your visitors in style, to custom music or sounds that you create yourself, or choose from six built-in catergories of songs, sound effects, and even voice phrases. This electronic door chime is designed to replace the normal wired mechanical door bell in your home. It supports a front door button (both lighted and non-lighted) as well as a back door button (optional). It can be setup to play any particular song or sound, or for more variety, it can sequence through any one of six different groups: Classic Chimes, Holiday, Halloween, Old Favorites, Fun Sounds, and Special Occasions. But the real versatility of this doorbell comes with its unique programmable feature. Using the built in microphone or the audio input jack, you can easily record or download up to 6 different songs or sounds - whatever you want! Total recording time is 60 seconds using state of the art flash memory. No more annoying ding dongs. Program songs for family events such as birthdays or anniversaries. Have it play your school fight song. Switch it to Holiday songs for your guests at your Christmas party. Have it scream or howl for Halloween. Record your favorite TV theme or movie catch phrase. The possibilities are endless. This product is limited only by your own imagination. iChime is truly the "Play Anything" doorbell! Doorbell has six terminal connections, as follow: Front door, Transformer, Back door, Pushbutton, Auxiliary speaker 1, Auxiliary speaker 2.