You can share your good taste in music before your guests even enter the front door with the MP3 DJ Doorbell. Setup is simple: The push-button doorbell can be attached near your front door with the included double-sided adhesive. The doorbell’s speakers, which have a slot for an SD card, can be attached to a wall or placed on a shelf inside your living room up to 165 feet away from the doorbell. When someone presses the doorbell, it sends a wireless signal to the speaker, which then plays music stored on a memory card. Priced at about $50, the MP3 DJ Doorbell from Swann includes MP3 editing software.

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