?Size: 38 x 79 mm; Power: 15 w; Power input: DC 15-24 V, current 2A, DC5.5 interface.
?Audio input: 3.5 jack, you can connect your phone, mp3, audio computer (Note: You need to connect an audio source, so it can work.)
?Tesla on the basis of the general increase of the music player, you can play phone/computer music, a clear sound. 15-24V DC input voltage.
?Here is the YouTube video, https://www.youtube.com/watch?v=yOqXpuYTFso
?No risk of electric shock, but the body is equipped with electronic medical devices such as pacemakers cannot be used.