Fortunately, the design of the actual speaker is as good as if not better than the packaging. Here are some of the examples of attention to detail that I appreciate. First, the HMDX JAM has nice heft to it. Combined with the rubber bottom, the JAM will stay put unlike many junky competitors. It uses a microUSB port for charging, which is becoming the standard. I have a competing speaker that uses miniUSB and I can rarely find the cable.
The top of the speaker has an attractive perforated grill and metallic disc in the center. Not only does this look nice, but it helps protect the internals. That competing speaker I have was quickly broken by my daughter, as the tweeter is exposed and, I guess it was irresistible to her! I would feel comfortable leaving the HMDX JAM in her hands. It pairs easily, using 0000 as the Bluetooth code, and you can also plug in an external audio source using the aux jack, although you'll need to provide the cable. The power switch is recessed, on the bottom, so you're not likely to turn it on or off by accident. That leaves just the play/pause and volume buttons on the base of the unit. I would like to see a volume indicator, but in reality, you will probably adjust volume from your Bluetooth source and leave the speaker alone.
Ultimately, with any speaker, the most important characteristic is the sound quality. The HMDX JAM does not disappoint, as from the moment you turn it on, and you hear the audible confirmation, you know this is going to produce some deceptively supersized sound. Indeed, I found that I needed to turn down the volume on my iPad when sending audio to the speaker, as it was dramatically louder than the iPad's built-in speaker. I highly recommend the HMDX JAM but the difficult decision will be which of the beautiful colors to choose!