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Monster Adidas Sport Adistar In-Ear Wireless Headphones review: An in-ear wireless sports headphone that gets it mostly right

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The Good The Monster Adidas Sport Adistar is a well-designed in-ear wireless sports headphone that offers a comfortable, secure fit and decent sound (for Bluetooth). Battery life is good for this type of headphone, cord length is easily adjustable and you charge via a micro USB port conveniently located in the inline remote. A protective carrying pouch is included.

The Bad The headphone is sweat resistant but not waterproof, and the sound can distort at higher volumes.

The Bottom Line Monster's Adidas Sport Adistar is one of the better-fitting and -sounding in-ear wireless sports headphones for the money.

Visit manufacturer site for details.

8.0 Overall
  • Design 9
  • Features 8
  • Sound 7
  • Value 8

Review Sections

Monster has created several Adidas-branded headphones and this wireless in-ear sports model, the $100 (£90; AU$150) Adidas Sport Adistar, is a particularly good one.

This is a noise-isolating headphone, which you means you have to jam the tips into your ears to get the best sound. If you don't get a seal, you lose a lot of bass, and the sound will come across as thin. But one of the key design features is Monster's SportClip wings that lock the bud in place and help create a secure, tight seal.

I did a couple of runs with these headphones and they worked very well, with a stable Bluetooth connection for the duration. I had to to make minimal adjustments as I ran and the cord length is easily adjustable with the integrated cord shortener.

A couple of caveats. I'd have preferred if they were rated as waterproof (and washable), not just sweatproof. Although they held up fine during the week I auditioned them, I can't tell you how well they'll hold up over several months of use. You should also be aware that you won't be able to hear traffic noise if you're playing your music at moderate to high volumes due to their noise-isolating nature.

Like virtually all Bluetooth headphones, this one's equipped with an inline remote and microphone for making cell-phone calls (call quality is only OK). The call answer/end button doubles as as a pause/play button, and if you tap it twice quickly it calls up Siri on iPhones for voice control operation. To advance tracks forward you hold down the volume up button. Hold the volume down button to skip back a track.

What you get in the box.

Sarah Tew/CNET

Another noteworthy feature is the dual battery design (presumably one in each bud) that boosts battery life to as much as eight hours, depending on the volume level. And I liked how you charge the battery through a Micro-USB port in the inline remote, where the electronics live, rather than the bud. This is a new design feature for wireless in-ear headphones for 2016 and you'll find it in several models later this year, including the Sol Republic Relays Sport Wireless and Jaybird Freedom.

Monster also makes the Monster Clarity HD Wireless for $20 less. It's the same headphone but doesn't come with the SportClip wings and ships with a different carrying pouch. But the two headphones sound the same.

Performance

As long as you can get a tight seal, the Adistar's sound quality is quite decent though not exceptionally good for Bluetooth. The headphone offers strong, fairly tight bass and reasonable clarity up to about 75 percent volume. But it distorts a bit when you push the volume to the top, especially with more complicated tracks that have a lot of instruments playing at once.

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