The Jam Heavy Metal is an awesome portable Wireless...bluetooth speaker. This speaker live's up to the name HEAVY. As it is indeed heavy. As a friend who I once worked with told me, the heavier the speaker normally the better the quality of sound.
The Heavy Metal definitely has amazing quality sound, and a beautiful voice that talks to you like Kit out of Knight Rider. Only its cooler, because it has a female that can speak in three languages.
It's full metal jacket made from anodized aluminium gives it a very premium and smooth look and feel. The buttons on its top surface are well placed and incredibly tactile, which makes the Heavy Metal very pleasing to use.
The sound quality is also very smooth, with a clean sound being its strongest feature. Got to love the auto cues though.