Tech-Life BeatBlock - Wireless Bluetooth Speaker: Rechargeable, Ultra-Durable and Splashproof (Bombproof Rubber Exterior-Black)
This speaker is a great buy.  It's durable and has a great sound.  It paired to my phone instantly.  I also use it as a replacement for my wimpy laptop speakers.  If you're looking for some bluetooth speakers to share your music selection with your neighbors (whether they like it or not), I highly recommend the Beatblock.