JLab Audio Flex Sport Wireless

Sweat resistant. Removable, washable earpads. Three EQ modes. Ambient noise/aware mode.

Audio is overly bright. Oddly designed headband. Build feels somewhat cheap. IP rating is low for exercise-focused headphones.

The JLab Flex Sport Wireless headphones don't get anything egregiously wrong, but they fail to stand out in a field of better options. Their audio sounds overly bright and sculpted, the headband feels like an experiment instead of a feature, and for...

Lightweight and comfortable; Water- and sweat-proof; Balanced, spacious, and surprisingly refined sound

Not much in the way of accessories; Rubbery cable can be noisy; Bass lacks depth and rumble

Any way one chooses to look at it, the H2O Audio Flex is a very solid entry-level in-ear earphone. Aside from the compliant fit, the most impressive aspect of the earphone is the sound – while those in search of deep, thumping bass will be unimpressed,...