ALPINE KAX-551N amplified speaker for voice guidance. Functionality has been confirmed. This was an option for old ALPINE navigation systems, but it can be used universally as it has ACC and ground power connections, RCA audio input, and a volume control. The sound quality isn't great as it's not a speaker for music, but it should be sufficient for voice guidance as it can produce a decent volume. All accessories are shown in the photos. Condition: The speaker has some scratches but is generally okay, but the power unit is dirty with sponge tape wrapped around it. 251222