We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-21 · 6 min read · Independent comparison
If you want earbuds built around sustainability with a battery-free charging case and phone-powered charging, choose Skullcandy EcoBuds Sustainable; if you need active noise cancellation, a higher Bluetooth version and a traditional charging case with its own battery, choose RadioShack TWS Earbuds.
• Skullcandy EcoBuds Sustainable — biggest strength: A sustainability-first design with 65% renewable plastics, fully recyclable packaging, a lithium battery-free charging dock and USB-C charging straight from your phone.
• Skullcandy EcoBuds Sustainable — biggest trade-off: No active noise cancellation (it relies on a passive, noise-isolating fit), and the dock holds no battery of its own, so you charge the buds rather than top them up from a case.
• RadioShack TWS Earbuds — biggest strength: Active Noise Cancellation plus Bluetooth 5.4 and a 460mAh charging case, so you get both noise blocking and a case that carries extra power.
• RadioShack TWS Earbuds — biggest trade-off: No stated sustainability materials, no USB-C phone charging feature mentioned, and no listed warranty terms.
• Who each pick is for: Skullcandy EcoBuds Sustainable for the eco-conscious listener who wants a lightweight, low-impact setup; RadioShack TWS Earbuds for the traveler or commuter who wants ANC and a bigger battery reserve.
The EcoBuds are a design statement as much as a pair of earbuds. Skullcandy built them with 65% renewable plastics and 100% recyclable packaging, and the headline move is the battery-free charging dock — removing the lithium battery from the case cuts the heavy metals content by 57%. If you care about the environmental footprint of your gadgets, that is the whole pitch, and it is a rare one in true wireless audio.
In daily use, the numbers are straightforward. You get up to 8 hours of playtime in the buds, and Rapid Charge gives you 2 hours of listening from a 10-minute charge. The integrated USB-C cable means you can charge directly from your phone when you are out and about, which is genuinely handy if you are traveling light or away from a wall outlet. An IPX4 rating covers sweat and light water exposure, so workouts and drizzly commutes are fine. There is a microphone in each earbud, touch controls for calls, volume and track skipping, and three EQ presets — Music, Bass Boost and Podcast — so you can tune the sound to what you are listening to.
Who should buy it? Someone who wants a low-impact pair of earbuds, charges from a phone or laptop regularly, and prefers a secure, noise-isolating in-ear fit over powered noise cancellation. Who should skip it? Anyone who needs active noise cancellation for planes, trains or open offices. Passive isolation only goes so far, and there is no ANC here. Also skip it if you want a case that doubles as a power bank — the dock has no battery of its own. Skullcandy includes a 1-year USA limited warranty.
The RadioShack TWS Earbuds take the opposite approach: pack in the features that make life easier on the move. The marquee item is Active Noise Cancellation, which actively blocks background noise rather than just sealing your ear canal. If you fly, ride transit or work in a noisy room, that is a meaningful difference from passive isolation. Bluetooth 5.4 with the Bluetrum AB5636F chipset handles the connection, and the pairing story is instant — open the case, connect, done.
Battery is the other headline. The earbuds carry 35mAh cells and the charging case holds 460mAh, so the case itself is a real power reserve you can draw on across the day, not just a holder. RadioShack also emphasizes low power consumption, which is the sensible pairing with a case that size. The buds are rated IPX5 for water resistance — a step up from IPX4 — so heavier sweat or splashes are less of a concern. Sensitivity is listed at 114 dB with 320-ohm impedance and a dynamic driver covering 20Hz to 20,000Hz.
Who should buy it? The commuter, frequent flyer or noisy-office worker who wants ANC, a case with genuine battery capacity and the latest Bluetooth version. Who should skip it? Anyone who prioritizes recycled materials and recyclable packaging, or who wants to charge from a phone — those are not part of this design. Note that no warranty terms are listed for this model, unlike the Skullcandy, so factor that into your decision.
Side-by-Side: Which Should You Choose?
• Best for noise cancellation → RadioShack TWS Earbuds. It has Active Noise Cancellation; the EcoBuds rely on passive, noise-isolating fit only.
• Best for sustainability → Skullcandy EcoBuds Sustainable. 65% renewable plastics, 100% recyclable packaging and a 57% reduction in heavy metals from the battery-free dock.
• Best for battery reserve in the case → RadioShack TWS Earbuds. The 460mAh case battery is a real reserve; the EcoBuds dock holds no battery at all.
• Best for connectivity → RadioShack TWS Earbuds. Bluetooth 5.4 versus Bluetooth 5.2 on the EcoBuds.
• Best for water resistance → RadioShack TWS Earbuds. IPX5 beats the EcoBuds' IPX4, though both handle sweat and light rain.
• Best for sound tuning on the fly → Skullcandy EcoBuds Sustainable. Music, Bass Boost and Podcast EQ presets give you quick adjustments; the RadioShack sheet lists no EQ modes.
• Best for peace of mind → Skullcandy EcoBuds Sustainable. A 1-year USA limited warranty is included; RadioShack lists none.
In my opinion, the RadioShack TWS Earbuds are the stronger pick for most people, because Active Noise Cancellation, Bluetooth 5.4 and a 460mAh charging case solve the problems that actually show up in daily use — noise and battery anxiety. I would recommend the Skullcandy EcoBuds Sustainable specifically to the buyer who wants their tech to reflect their values: the recycled materials, recyclable packaging and battery-free dock are a genuinely different approach, and phone charging plus Rapid Charge keep it practical. If ANC matters more than materials, go RadioShack. If sustainability is the point, go EcoBuds. Check the current price on Amazon before you commit, since that is the one variable this comparison cannot cover.
No. They use passive noise cancellation through a secure, noise-isolating fit — there is no active noise cancellation. If you want powered ANC, the RadioShack TWS Earbuds are the ones with that feature.
Yes. The case holds a 460mAh battery, and the earbuds themselves have 35mAh cells. That means the case acts as a power reserve you can draw on through the day, unlike the EcoBuds dock, which has no battery.
The RadioShack TWS Earbuds are rated IPX5, while the Skullcandy EcoBuds Sustainable are rated IPX4. Both handle sweat and light rain, but IPX5 tolerates more water exposure.
Yes. The charging dock has an integrated USB-C cable, so you can charge the buds directly from your phone. That is a feature the RadioShack TWS Earbuds do not list.
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