The RHA MA650 Wireless in-ear headphones have a lot going for them. They are built well, very comfortable to wear, and don't have a tendency to fall out (partially due to a grand total of nine replacement ear tips to choose from) even when being worn in a gym or on a run. Their IPX4 rating means they have no problem being splashed by rain or soaked with sweat. Thanks to that, even though primarily made for working out, there's nothing stopping you from using them on a run.

Compared to other neckband-style in-ear wireless headphones in the $100/€100 price bracket, the battery of the RHA MA650 Wireless lasts longer, oftentimes for more than 12 hours, which meant I didn't obsess over the remaining battery life whenever I sought to use them. The controls could be better; they're fully functional, but the buttons on a small in-line module are hard to press. If someone from RHA is reading this, I suggest you move the controls of your neckband wireless headphones to the neckband itself. Based on my experience, such implementations work much better for everyday usage.

In the sound quality department, the RHA MA650 Wireless again offers more than you'd expect for $100/€100. They can get exceptionally loud without any distortion, and their sound is generally energetic, punchy, detailed, and expansive. The only aspect I found somewhat lacking is the switch from mid to high-range, where they can get overly bright. I don't consider this issue too problematic, though. However, if your ears are sensitive to the occasional sizzle in the upper part of the frequency spectrum, you might want to give these a pass.

For the money RHA's asking for these, they're a good investment. I'd happily recommend them to anyone looking for a good pair of $100/€100 neckband-style in-ear wireless headphones. For roughly the same amount of money, you can also consider the 1MORE Dual Driver BT ANC (reviewed here). They have better controls, active noise canceling and fast charging, but battery life is significantly shorter, they aren't IPX4-rated, and don't offer Bluetooth aptX audio codec support.