Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: I returned due to these factors: The earbuds. They are generically shaped and not a one size fits all or customizable. One look to the left or right and they fall out. The volume level is far less than expected from similar products I've purchased in the same price point. Lastly, the battery performance was less than I had expected. Five to six hours was a maximum on full charge for me. I will attest to the ease of connectivity, sleek and minimal design, and lightweight of this product. Probably good for some; it's worth mentioning that there is no way to secure the earbuds when they are not in use. When unsecured they dangle freely around the neck or chest. They also pick up plenty of ambient noise as they all do. I hope this helps!

Low battery life, ear buds fall out, low volume...