Skip to main content

JBL’s solar-powered headphones could eliminate the need for recharging

Image used with permission by copyright holder

JBL is trying something new: an Indiegogo campaign for a set of solar-charging wireless headphones called JBL Reflect Eternal. They’re essentially a regular set of on-ear Bluetooth headphones, but the headband contains a solar energy collection panel made by Exeger, a Swedish technology company that specializes in light-powered applications.

That solar panel is the key to some pretty amazing claims from JBL regarding the Reflect Eternal’s ability to go without being plugged in. Assuming you start with a fully charged battery and only spend 3.5 hours listening to music per day, spending 1.5 hours outside per day is enough to deliver 68 hours of playtime. Two hours outside extends that to a whopping 168 hours of playtime, while 2.5 hours or more offers “virtually unlimited playtime,” according to the company’s Indiegogo page.

There is, of course, some fine print associated with these claims. They are based on the assumption that when you’re outside, you’re being exposed to at least 50,000 lux. That’s not going to be possible unless you’re outdoors during a bright, sunny day. Overcast days generally only produce about 1,000-2,000 lux. You don’t have to find your lux outside, though. Any source of light will work, including indoor lighting. JBL claims that three hours of indoor light will give you one hour of playtime.

If the light ever fails to materialize in sufficient quantities, you can still recharge the JBL Reflect Eternal via the less environmentally friendly USB-C power port. 15 minutes will get you 3 hours of playtime, and the battery can hold 24 hours of power.

Other than its solar-collection headband and charging system, the JBL Reflect Eternal bears a strong resemblance to the company’s $130 E45BT on-ear wireless headphones. Its audio and tech specs are similar, too, with 40mm drivers, JBL’s Signature Sound, access to voice assistants, and the ability to connect to multiple devices. The Reflect Eternal also offers IPX4 water-resistance and possesses a hear-through system for greater safety when in potentially dangerous situations.

Will the JBL Reflect Eternal resonate with buyers? We’re on the fence on that one. On the one hand, there are a lot of people looking for a greener choice when it comes to the products they buy, and these headphones certainly qualify. On the other hand, JBL isn’t the first company to try to crowdfund a set of solar-recharging headphones. Exod tried it in 2014 with its Helios headphones but failed to meet its campaign goal.

Since 2014, we’ve hardly seen any new attempts to make a set of solar headphones, and you’ve got to wonder why. Our guess is that the biggest benefit to the technology in most people’s minds is the elimination of charging anxiety. Because the latest wireless headphones are capable of storing between 30 and 40 hours of power, though, those concerns are far less top-of-mind for people than they used to be. We expect these numbers will only go up in the years ahead. JLab’s Epic Air Sport are a good example. With a fully-charged carrying case, they can last 70 hours.

We do need to point out that should you be interested in backing the JBL Reflect Eternals, the usual caveats around crowdfunding apply, even though JBL is obviously a well-known audio company. The campaign has already met its minimum funding requirement. It runs until January 27, with pledge amounts starting at $100 for early-bird backers. JBL claims that if the production run is successful, backers will receive their headphones as early as October 2020.

Editors' Recommendations

Simon Cohen
Contributing Editor, A/V
Simon Cohen covers a variety of consumer technologies, but has a special interest in audio and video products, like spatial…
JBL updates its Tune, Vibe, and Endurance Peak earbuds at CES 2023
JBL Tune Flex.

As it has in the past, JBL has brought a huge number of personal audio products to CES 2023, including wireless earbuds and headphones for everything from casual to critical listening. Some of these products were previously announced for European countries, but now we have release dates and pricing for U.S. availability, too. Here's everything JBL announced.
JBL Endurance Peak

JBL has improved its sports-oriented wireless earbuds considerably from 2022, with:

Read more
13 things to consider when buying headphones for someone else
A man wearing the Sony WH-1000XM4 wireless headphones.

As we get closer to Black Friday and the 2022 holiday season, there’s probably at least one person on your gift-giving list who would like a new set of headphones. And unless this person has sent you a link to the specific headphones they want, it’s now decision time, and you’ve got to figure out which one of the thousands of options to buy.

You could start by checking out our roundup of the best headphones and the best true wireless earbuds -- you won’t go wrong with any of the products on these lists. But sometimes, some more tailored advice is helpful. Let's talk about what makes a good pair of headphones and how to know you're getting the right ones for someone else.
It’s more than just music

Read more
Adidas gives its wireless on-ear workout headphones a solar-powered boost
Adidas RPT-02 SOL solar-powered headphones.

Adidas' popular RPT-01 on-ear workout headphones have been redesigned to work with a power source that will be with you wherever your outdoor training sessions take you. The $229 or 200 British pounds Adidas RPT-02 SOL are equipped with a headband that can harvest solar energy, which is used to keep their internal rechargeable battery topped up with power. It goes on sale August 23 at

It's not the first time a company has released a set of solar-powered headphones. Urbanista did that in 2021 with its Los Angeles headphones. But the Los Angeles are a larger, over-ear model that aren't especially well suited to workouts, which arguably makes the Adidas RPT-02 SOL a better fit for the benefits of solar charging.

Read more