[This review was collected as part of a promotion.] This compact package is impressive! I wasn't expecting this much sound to come from something so portable. It can literally go anywhere you can go. The IP67 rating makes it waterproof and dust proof. That along with the unique built-in carabiner for "safe clipping" makes this a winning combination. I carry it to my office everyday clipped to my backpack. It's perfect for me to play music with all day at the office without having to worry about the battery dying. I love it! Although there is one thing in particular that bothers me about this small wonder. It will not work with phone calls. During training meetings I like to use the webex application on my phone for video/audio conferencing. The other day I left my JBLClubPro earbuds at home, but thought it would be great to listen to the training using the Clip 4. That's when I discovered that the speaker goes silent when my phone is connected to a call. Actually it doesn't even show up as a bluetooth connecting option for call audio while engaged in a call. I've done some trouble shooting and minimal research on this to no prevail. Hopefully it's something that I'm not doing right that causes this. Other than that this is a great portable product that I not only suggest for people on the go, but I also suggest for anyone who likes music as much as I do. Whether that's on a mountain top, at the office, or in the kitchen. This will satisfyingly bring you listening pleasure bundled with maximum portability.

I don’t know. So I did three starts for now. It’s a Christmas gift so it’s currently under the Christmas Tree. It looks cool though but I won’t know anything u til after it’s opened.

I used to have the clip 3 and this one definitely sounds pretty good as well, but it doesn’t get very loud. My biggest complaint is that the rubber pieces on the back come off easily and are nearly all gone on mine. This doesn’t affect the sound or design much but it’s just frustrating and makes the product seem a little poorly made.