My first pair of BT IEMs. I was pleasantly surprised at the sound quality and how well they work. I have had minor dropouts at times, but not anything that makes me want to go back to wires. The Jaybird App is a must for getting the right flat response. The Comply Foam tips insure proper sound isolation and bass response. I wear the X4 "down" because in the "over ear" position the fins are difficult to fit into the ears due to the cord strain relief. It is not flexible enough to push out of the way when inserting the fins. I would rather wear the X4 in the "over ear" position but removal of the fins is not an option. The weight of the IEMs makes use of fins absolutely necessary. The X4's will not stay in the ear during workouts without them.
Verified purchase: Yes | Condition: New
I find the ear buds don't fit well in my ear. The design with the fins is kind of strange. I much prefer over the ear like beats. I do like that they are waterproof and that was the biggest reason I bought them. Maybe the overall rate could have been a littler higher but I was discouraged by the fit.
Verified purchase: Yes | Condition: New
Overall: great! I am quite satisfied with my purchase. The reviews are quite accurate on the pros and cons: Pro: - sound quality - battery life - fit options - EQ options - good for sports/physical activity - range Con: - Quite awkward (silly) charging method but it works. - mic pickup not great (fixed by wearing cord in front of neck instead of back). - Can't use it while biking due to extreme sound cancellation. What I'm particularly happy about is that due to the varied fitting options, I am able to fit it in my ears that have very small ear canals AND the noise level is just within tolerable. Makes earbud shopping a chore but this did the job. I just wish there were an option for fitting that doesn't block out so much sound. That way I could hear others around me and the sound wouldn't be so loud at lowest volume. I can't give a full five stars based on the cons but I HIGHLY recommend this product! Very satisfied with my purchase.Read full review
Verified purchase: Yes | Condition: Pre-owned
Jaybird is one of my favorite brands of earbuds. The quality, sound, and the easy use make this a number one choice for me
Verified purchase: Yes | Condition: New
X4 Jaybirds are reliable. I use for gym exercise and road biking. The cord may be shortened around the back of the head. This is my 5th pair from the company, as they have improved the product line, extended the battery life, etc.
Verified purchase: Yes | Condition: Pre-owned
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