If you want a little vibe, this is your speaker.
Strong on its own—better in stereo with a second speaker. 
Magnetically mount it to the cart, clip it to your bag, or put it in your pocket. Just a good speaker. 

Magnet Mount · IPX7 Waterproof · True Wireless Stereo (TWS) Pairing · Lightweight · USB-C Rechargeable 

Now, get back to chasing pins.