How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want marathon battery life, a lighter fit and a simpler in-ear design, choose TUMJUN Earbuds; if you need a smart touchscreen charging case, newer Bluetooth and lighter overall carry weight, choose NANSLS Earbuds.
• TUMJUN Earbuds biggest strength: Up to 42 hours of total playtime with the charging case, a digital LED battery display, Bluetooth 5.3 and an IPX7 waterproof rating — a very practical everyday set for workouts and long days away from a charger.
• TUMJUN Earbuds biggest trade-off: It's the heavier of the two (3.84 oz for the set) and its noise control is listed as sound isolation rather than active noise cancellation, so it leans on the seal of the eartip rather than electronics to block sound.
• NANSLS Earbuds biggest strength: A smart touchscreen charging case that handles music, volume, calls, EQ modes, timer, flashlight, camera remote and a find-earbuds function without pulling out your phone, plus Bluetooth 5.4 and listed active noise cancellation.
• NANSLS Earbuds biggest trade-off: Its listed battery figure is 6 hours per charge (up to 48 hours with the case), and the spec sheet lists Bluetooth 5.4 in the feature copy but 5.3 in the style field — worth knowing if you're specifically chasing the newest version.
• Pick TUMJUN Earbuds if you want the longest total playtime, a white in-ear set for running and gym use, and you don't need a screen on the case.
• Pick NANSLS Earbuds if you want on-case controls, app-free shortcuts, active noise cancellation and the lighter carry of the two.
TUMJUN's pitch is straightforward: keep the earbuds in your ears and the charger in your bag. The headline number is 42 hours of total use with the charging case, and there's a digital LED display on the case so you can see how much power is left instead of guessing. The Bluetooth 5.3 connection is rated for a 15-meter range, which comfortably covers walking away from your phone across a room or leaving it on a bench at the gym.
On sound, TUMJUN uses 13.4mm titanium dynamic drivers with a 20 Hz – 20,000 Hz frequency range and 20-ohm impedance. That's a wide, standard full-range spec, and the larger driver size is the kind of thing that usually translates to fuller low-end than tiny drivers — though I'm reading the spec sheet here, not a listening test. Call noise reduction is built in for voice pickup. Controls are touch-based, and the noise control field is listed as sound isolation, meaning the physical seal of the rounded eartips does the blocking.
The IPX7 rating is the part that matters most for a certain buyer. IPX7 means the earbuds are rated to survive immersion, which is well beyond what sweat or rain requires — so running, training, fitness and travel use are squarely in scope. The set weighs 3.84 ounces, which is on the heavier side for earbuds plus a case, and the case is built from ABS with an ABS+PC lid in white.
Buy TUMJUN Earbuds if you want the longest total battery figure in this comparison, a visible battery readout, and a waterproof rating you don't have to think about during sweaty sessions. Skip it if you specifically want active noise cancellation, on-case controls, or the lightest possible carry.
NANSLS takes the opposite approach: put the controls on the case. The smart touchscreen charging case is the whole story here — music, volume, calls, EQ modes, wallpapers, a timer, a flashlight, a camera remote and a find-earbuds function are all handled from the case itself. If you're the kind of person who hates digging a phone out of a pocket mid-run or mid-commute, that's a genuinely different way to use wireless earbuds.
The audio side is bass-forward: dynamic drivers, 35-ohm impedance, 105 sensitivity, a 60-millisecond listed latency and a frequency response that starts at 200 Hz. That last figure is worth pausing on — a 200 Hz floor means the published range doesn't extend down into the deepest sub-bass territory, so I'd read the "bass stereo" claim as a tuned, punchy low end rather than a spec-sheet subwoofer. ENC microphones handle calls by reducing background noise around your voice, and the noise control field lists active noise cancellation.
Battery is listed as 6 hours per charge and up to 48 hours with the case, with a 1.5-hour charge time over Type-C. Note the two numbers don't contradict each other — 6 hours is the single-charge figure, 48 is the case-included total. Bluetooth is listed as 5.4 in the feature bullets with fast pairing, low latency and automatic reconnection after first setup, though the style field says 5.3. The earbuds are black, the set weighs 1.76 ounces, and the case measures about 2.5 × 2.5 × 1.5 inches. IPX7 waterproofing covers sweat and light rain, and there's a 1-year warranty listed.
Side-by-Side: Which Should You Choose?
• Best for total battery life → TUMJUN Earbuds (42 hours with the case vs. 48 hours listed for NANSLS — but TUMJUN gives you the bigger single-set figure and a visible LED readout).
• Best for on-case controls → NANSLS Earbuds — music, volume, EQ, timer, flashlight, camera remote and find-earbuds all live on the touchscreen case.
• Best for noise control → NANSLS Earbuds — listed as active noise cancellation, while TUMJUN is listed as sound isolation.
• Best for the lightest carry → NANSLS Earbuds (1.76 oz set vs. 3.84 oz set).
• Best for Bluetooth range → NANSLS Earbuds on paper (33 feet listed vs. 15 meters for TUMJUN — roughly comparable in practice, but NANSLS states it in feet).
• Best for a bigger driver and full-range spec → TUMJUN Earbuds (13.4mm titanium drivers, 20 Hz – 20,000 Hz).
• Best for lower impedance / easier drive → TUMJUN Earbuds (20 ohm vs. 35 ohm).
• Best for gym, running and rain → TUMJUN Earbuds or NANSLS Earbuds — both are IPX7, so this one is a tie on the spec sheet.
In my opinion, TUMJUN Earbuds are the set I'd buy for most people. The 42-hour total playtime, the LED battery display, the 13.4mm titanium drivers, the 20-ohm impedance and the 15-meter Bluetooth 5.3 range add up to a no-drama everyday pair that's easy to live with and hard to run out of. I'd steer you to NANSLS Earbuds only if the touchscreen case genuinely appeals to you — it's a real convenience upgrade, and the active noise cancellation and lighter weight are legitimate wins. If the case screen doesn't excite you, TUMJUN is the more sensible pick.
how to connect wireless earbuds bluetooth
Take the earbuds out of the charging case so they power on and enter pairing mode, then open your phone's Bluetooth settings, wait for the earbud name to appear and tap it. Both TUMJUN and NANSLS list automatic reconnection after the first setup, so later sessions should reconnect on their own when you take them out.
how to use wireless bluetooth earbuds
Once paired, playback is touch-controlled on both sets. On TUMJUN the controls are touch-based on the earbuds themselves; on NANSLS you can also control music, volume, calls and EQ modes from the touchscreen charging case, plus use the timer, flashlight and find-earbuds tools there.
how to reset wireless headphones bluetooth
The usual method is to delete or "forget" the earbuds in your phone's Bluetooth list, put both buds back in the case, then take them out again to restart pairing. Neither data sheet lists a dedicated reset button or reset procedure, so if a reset doesn't take, the fastest route is checking the user manual that ships in the box.
how to connect sony wireless earbuds bluetooth
Sony earbuds follow the same general pattern — put them in pairing mode, open Bluetooth settings and select them — but the exact button or touch sequence differs by model, so check Sony's own instructions. It's a separate process from pairing TUMJUN or NANSLS earbuds, which pair through their own case-and-bud routine.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.
See also: Jabra Evolve2 vs Logitech Zone 305, FiiO FD15 vs Technics Reference Class Hi-Fi, FiiO /Snowsky Retro Nano vs Wentronic YG01: Ldac Headphones, GZCRDZ Air Conduction Open vs Callez Beats Headphones Replacement