Upon trying this product I found pros and cons. My experiences might be different from yours especially if you are using a different device/s with what I have.
Pros and cons:
2 Works on my Blackberry 10 phone for listening to music but sadly I can't use it for hands free calling. Not sure why, it says hands free calling not connected. Even though the speaker shows it is connected to my phone. With my other Bluetooth speaker I was able to receive call.
3. It works with my Toshiba laptop which doesn't have a Bluetooth connection. Using the Auxillary cord I was able to magnify the sound coming from my laptop.
4. I found it very easy to pair to any devices. But I can't connect two devices together. My other speaker allows me to connect both my phone and my kindle.
5. It has a Shockproof protection which I love the most because I'm clumsy and I accidentally dropped this speaker already but it turned up fine. It says it is waterproof too but was told not to submerge it in the water.
7. It has built in mic, built in lithium rechargeable battery. Has buttons I can press for controls and a knob mainly for volume control. Sleek design looks like a water bottle for me. Love the yellow green color.
I love the product, the sound is very crisp and clear. Although the hands free calling didn't work on my Blackberry phone I can say I like this Bluetooth Speaker.