Thursday, May 19, 2022
Smart Phones

Zolo Liberty+ Truly Wireless Headphones review: Fantastic battery life but mediocre audio

Anker has been making high quality mobile accessories and selling them at a reasonable price for years. Their audio brand, Zolo, is in on this action too: The company’s first truly wireless headphones, the $150 Zolo Liberty+, are indeed reasonably priced. You’ll get the longest lasting battery life of any truly wireless earphones that I’ve tested so far. However, connectivity issues and mediocre sound mean you might not want to listen for too long.


In-ear headphone design doesn’t vary much—the things have to be shaped to fit into a user’s ears, after all—but Zolo did well in this area. The Liberty+ comfortably fit into my ears right out of the box, and even if it hadn’t, Zolo includes three different ear tip sizes and four pairs of ‘Grip Fit’ sleeves to create a good seal and keep the earphones in place.

Multifunction buttons are built into the back of each earbud. Tapping both while the earbuds are in their battery case begins the pairing process with your music source. One paired, the buttons are used to resume or pause music, accept or reject a call, or interact with your device’s virtual assistant.

The earphones have an IPX rating of 5, making them more or less sweat resistant. I wore them in the shower to test this—and they survived the deluge. While I don’t recommend repeating my experiment as a regular practice, the Liberty+ does seem well-made and should wear well if properly cared for.

liberty 01 Zolo

The Liberty+’s battery case is swathed in a slick, aluminum shell—a nice upgrade from the typical plastic cases I see. The case’s extremely slippery exterior takes away from some of its lustre, however. I also found that while the case securely stores the earphones, ensuring that they charge correctly, removing the earbuds from their cradles is difficult.

For battery life, Anker leveraged its know-how from its USB power bank business when designing the Liberty+’s case: It can provide the earbuds with a stunning 48 hours worth of total playtime. Unfortunately, though, the internal battery inside of the earbuds only allows for around three hours of use between charges. In my review of Sony’s $199 WF-1000x headphones, I knocked the headphones for exactly the same reason. However, for a set that costs close to $50 less than the Sony ones do, it’s a shortcoming that’s a little easier to swallow.

Listening Experience

According to Zolo, the Liberty+ features 6mm Graphene Dynamic drivers with a frequency response of between 20Hz and 20kHz, as well as AAC and SBC audio codecs. With these specs, I was looking forward to giving the Liberty+ a good, long listen. Unfortunately, my enthusiasm for the earbuds was stifled by mediocre sound.

Don’t get me wrong, they don’t sound bad. But they don’t sound good either, especially when compared against Apple’s similarly priced AirPods. While the the earbuds delivered deep, punchy bass at all audio levels, I found that mid-range frequency was almost always muddy sounding, no matter what I was listening to. High frequency sound fared a little better, but not by much.


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