Anything Speaker PRO - Turn Anything Into A Speaker - Mini Bluetooth Travel Speaker - Bone Conduction Vibration

There isn't much to say other than it simply works. Turn any hardhat, bucket, trash can, plastic tote, microwave(yes i actually tried this), and anything else with hollow resonation that you can stick it to, into a loud speaker that yes you can even hear bass from. It's quite shocking how well it works, it's not a gimmick. I got some of the smaller size ones with the suction cup mounts as well. You stick one of those to a hard hat while your wearing it and it sounds like you have JBL surround sound on your head. It also works on metal sheds, tested it on a large metal building by attaching it to the outside and when you went inside it sounded like someone was playing a boombox. If your wondering how it works it's the same concept of bone conduction technology, it transfers the music through vibrations to what ever you put it on, so you want it to be something "hollow" that will allow it to resonate.

Excellent output for the price.

Works perfectly. Transfers sounds through walls great

I would give this zero stars if possible. The quality was suspect from day one. It barely charged and struggled to connect to my phone or laptop via bluetooth. Now, just after the return window has closed it has ceased charging altogether and will not power up. The sound quality was subpar when it worked - it's very easy to overdrive it and it makes a horrible sound when that happens. Documentation is poor and their website makes it seem like a scam item. It's impossible to find actionable information about the operation of this thing. Buyer beware.

Works well on medium-sized tables, in particular glass and wood. Less effective on metal surfaces. Bass response is better than smaller units, but still not great.