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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want true wireless earbuds with a bass-forward sound, app-based control and a pocketable charging case, choose JBL Tune Flex; if you need over-ear headphones with dramatically longer playtime, dual wired/wireless connection and a foldable travel design, choose TECKNET Noise Cancelling Headphones. These two products solve different problems, and the right answer depends entirely on how and where you listen.
• JBL Tune Flex biggest strength: True wireless freedom with 12mm dynamic drivers tuned for JBL Pure Bass Sound, four microphones for calls, and Smart Ambient modes (Ambient Aware and TalkThru) that let you stay aware without removing the buds.
• JBL Tune Flex biggest trade-off: Battery life is modest by modern standards — up to 32 hours total (8 in the buds plus 24 in the case), dropping to 6 plus 18 when ANC is on — and the IPX4 rating handles sweat and light rain but not submersion.
• TECKNET Noise Cancelling Headphones biggest strength: Up to 70 hours of playtime in standard mode (45 with ANC), 40mm drivers, Bluetooth 5.3 with dual-device connection, and a wired 3.5mm fallback when you want zero wireless dependency.
• TECKNET Noise Cancelling Headphones biggest trade-off: They're over-ear and bulkier, ANC must be manually switched on via a button, and the fit depends on the adjustable headband rather than the sealed in-ear design of a bud.
• Who each pick is for: JBL Tune Flex suits commuters, gym-goers and call-heavy users who want something tiny and easy to carry; TECKNET suits long-haul travelers, home-office workers and anyone who wants to plug in a cable and keep listening for days.
The Tune Flex is a true wireless earbud built around a stick form factor, and that shape matters. JBL uses it to enhance the output of the 12mm dynamic drivers, which is how the brand gets its signature Pure Bass Sound out of a bud this small. If your listening skews toward hip-hop, electronic, pop and anything rhythm-driven, that tuning is the whole point. The frequency range covers 20 Hz to 20 kHz, so the low end is genuinely present rather than implied.
The feature set is unusually social for a budget-conscious bud. Active Noise Cancelling with two microphones cuts down ambient noise, but the more interesting pieces are Ambient Aware, which pipes your surroundings back in so you feel safer walking through a parking lot or crossing a street, and TalkThru, which lowers the music and lifts voices so you can order a coffee without pulling the buds out. Four microphones handle calls in stereo, and VoiceAware lets you dial in how much of your own voice gets routed back — a small thing that makes a big difference on long conference calls.
Battery is where you need to be honest with yourself. JBL rates it at up to 32 hours total (8 plus 24), or 6 plus 18 with noise cancelling engaged. Speed Charge gives you 2 hours of playback from a 10-minute top-up, which is genuinely useful when you're heading out the door. IPX4 water resistance and sweatproofing mean workouts and light rain are fine. The JBL Headphones App adds touch-gesture customisation, an earbud finder and Smart Audio & Video modes. Buy these if you want small, wireless, bass-heavy and app-tunable. Skip them if you regularly fly long-haul or hate charging cases.
The TECKNET TK-HS013 is a different animal: over-ear, foldable, and clearly designed around endurance. The headline number is 70 hours of playtime in standard mode, or 45 hours with ANC running. A 10-minute charge via USB-C buys you 4 hours. For anyone who has ever landed after a transatlantic flight with dead headphones, that spec is the entire pitch — you can leave the charger at home for a week-long trip and still be fine.
The audio hardware is a 40mm dynamic driver with 32 ohm impedance, which is the classic recipe for deep bass and crisp highs in an over-ear shell. TECKNET claims 95% noise reduction from its ANC, and the company is upfront that ANC has to be actively switched on with the button — a detail worth knowing, because people who assume it's automatic often think the feature is broken. The over-ear design with ultra-soft memory foam earmuffs, a multi-level adjustable headband and swivel earcups is built for hours of wear rather than a quick commute.
Side-by-Side: Which Should You Choose?
• Best for battery life → TECKNET Noise Cancelling Headphones. Up to 70 hours standard, 45 with ANC, versus JBL's 32 total (8 plus 24).
• Best for workouts and sweaty commutes → JBL Tune Flex. IPX4 water resistance and sweatproofing, plus a sealed in-ear fit that stays put.
• Best for long-haul flights and office days → TECKNET. Over-ear memory foam cushions, swivel earcups and a foldable frame are made for extended wear.
• Best for taking calls → JBL Tune Flex. Four microphones with stereo calling and VoiceAware control over how much of your own voice you hear.
• Best for staying aware of your surroundings → JBL Tune Flex. Ambient Aware and TalkThru are purpose-built for quick conversations and street safety.
• Best for multi-device switching → TECKNET. Bluetooth 5.3 with simultaneous two-device connection and a wider rated range.
• Best for wired fallback → TECKNET. A 3.5mm jack and included cable mean it works with zero Bluetooth.
• Best for portability → JBL Tune Flex. A pocket-sized charging case and 10g buds versus a full-size over-ear headset.
I'd buy the TECKNET Noise Cancelling Headphones. In my opinion, the combination of up to 70 hours of playtime, 40mm drivers, dual-device Bluetooth 5.3 and a genuine 3.5mm wired mode makes it the more versatile purchase for most people — it covers flights, home office, gaming and wired listening without compromise, and the foldable design travels better than its size suggests. I'd recommend the JBL Tune Flex instead only if you specifically want tiny true-wireless buds, bass-forward tuning and the Smart Ambient features for street and gym use. If price is your deciding factor, check the current price on Amazon for both before you commit.
Both have Active Noise Cancelling, but they work differently. JBL uses two microphones in an in-ear seal and adds Ambient Aware and TalkThru modes. TECKNET claims 95% noise reduction from an over-ear design, though you must press the ANC button to activate it.
JBL Tune Flex gives up to 32 hours total (8 plus 24), or 6 plus 18 with ANC on, with 2 hours from a 10-minute charge. TECKNET gives up to 70 hours standard or 45 with ANC, with 4 hours from a 10-minute charge.
Yes. TECKNET includes a 3.5mm audio cable, so you can listen wired with no Bluetooth connection at all. JBL Tune Flex is wireless only — there's no headphone jack.
TECKNET's over-ear memory foam cushions, adjustable headband and swivel earcups are built for long sessions. JBL Tune Flex is in-ear, which some people find fatiguing over many hours but far lighter to carry.
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