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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want marathon-level total playtime and a feather-light fit for running and workouts, choose Tulbeys Open Ear Headphones; if you need a smart touchscreen charging case with on-the-go EQ control and phone-free MP3 playback, choose Monster Open Touch Pro.
• Tulbeys Open Ear Headphones — biggest strength: A 50-hour total playtime figure combined with a genuinely light 10g-per-bud build and IPX5 sweat resistance, aimed squarely at runners and gym-goers.
• Tulbeys Open Ear Headphones — biggest trade-off: The feature set is focused rather than flashy — no screen, no EQ modes, no local MP3 mode, and the case is a charging case first and foremost.
• Monster Open Touch Pro — biggest strength: A full-color LED touchscreen case that controls playback, track skipping, volume and multiple EQ modes, plus a TF card slot so the buds can work as a standalone MP3 player with no phone at all.
• Monster Open Touch Pro — biggest trade-off: Total battery tops out at 30 hours with the case versus Tulbeys' 50, and the design leans on silicone ear hooks rather than the ultra-lightweight approach.
• Who Tulbeys is for: Distance runners, cyclists and anyone who wants maximum hours per charge and barely notices the buds are there.
• Who Monster is for: Tinkerers and screen-lovers who want to leave the phone at home and tweak their sound on the case itself.
The Tulbeys K19 is built around one idea: keep the buds on your ears and out of your way. The open-ear, ear-hook shape means nothing presses into your ear canal, so you keep ambient awareness while cycling, hiking or running on a road. That's the real selling point of any open-ear design, and Tulbeys leans into it with a 25-degree directional sound beam that angles audio into the ear canal rather than just leaking it outward.
Where the numbers get interesting is stamina and weight. Tulbeys claims up to 8 hours on a single charge and a total of 50 hours with the compact charging case — that's a big buffer for a week of commutes or several long training blocks between charges. Each bud weighs just 10g and uses a polycarbonate shell with IPX5 sweat and water resistance, so rain and hard gym sessions aren't a dealbreaker. Bluetooth 5.4 handles the connection with a stated 30-foot range and low latency, which matters if you're watching video on a treadmill or tablet.
Who should buy it: Runners, cyclists, gym regulars and office users who want awareness plus long battery life, and who don't want to think about charging every other day. Who should skip it: If you want a screen on your case, adjustable EQ presets or the ability to play music without any phone or network, Tulbeys doesn't offer those — that's a different design philosophy.
Monster Open Touch Pro: Who It's For
The Monster Open Touch Pro 100 takes the same open-ear, ear-hook concept and bolts a small computer onto the charging case. That case has a multi-touch full-color LED screen, and from it you can control playback, skip tracks, adjust volume and switch between multiple EQ modes. For anyone who likes to fiddle with how their music sounds — more bass for the gym, flatter for podcasts — having those controls on the case instead of buried in an app is a genuinely different user experience.
Then there's the TF card slot. Drop in a memory card (not included) and the buds function as an independent MP3 player, no phone and no network required. For a runner who wants to leave the phone at home, or someone on a flight with no Wi-Fi, that's a real capability nothing in the Tulbeys spec sheet matches.
Audio hardware is the other headline: a 16.2mm dynamic driver, which is a large driver for this category and should help with fullness and detail. ENC adaptive noise separation handles calls, adjusting to changing background noise. The ear hooks are skin-friendly silicone for secure wear during activity, and IPX5 waterproofing covers sweat and light rain. Bluetooth 5.4 keeps latency low and the connection stable, with a stated 10-meter range.
Battery is up to 8 hours per charge and 30 hours total with the case — solid, but a step behind Tulbeys on total hours. Color is white.
Side-by-Side: Which Should You Choose?
• Best for total battery life → Tulbeys Open Ear Headphones. Up to 8 hours per charge and 50 hours with the case beats Monster's 30-hour total.
• Best for lightweight wear → Tulbeys Open Ear Headphones. 10g per bud in a polycarbonate shell is about as light as this category gets.
• Best for sound customization → Monster Open Touch Pro. Multiple EQ modes accessible from the touchscreen case.
• Best for phone-free listening → Monster Open Touch Pro. The TF card slot turns the buds into a standalone MP3 player.
• Best for call clarity in noisy places → Monster Open Touch Pro. Adaptive ENC that adjusts to environmental changes is the more advanced call feature on paper.
• Best for bigger-driver sound → Monster Open Touch Pro. A 16.2mm dynamic driver versus Tulbeys' bone-conduction-style driver and 20Hz–20kHz range.
• Best for sweat and rain → a tie. Both carry IPX5, which handles workouts and light rain but not swimming or heavy submersion.
• Best for set-it-and-forget-it simplicity → Tulbeys Open Ear Headphones. Auto-pairing on case open and touch controls on the buds, nothing extra to manage.
In my opinion, the Monster Open Touch Pro 100 is the more interesting product and the one I'd buy. The touchscreen case, multiple EQ modes and TF card MP3 mode give it capabilities the Tulbeys simply doesn't have, and a 16.2mm driver is a meaningful hardware advantage for sound quality. Yes, 30 hours total is less than 50, but 8 hours per charge is identical, and 30 hours is still several days of real use.
That said, if you're a high-mileage runner or cyclist who charges infrequently and wants the lightest possible bud on your ear, the Tulbeys K19 is the smarter pick — its 50-hour total and 10g build are built for exactly that person. Match the product to your habit, not to a spec sheet contest. And since pricing shifts constantly, check the current price on Amazon before deciding.
Not universally. Monster wins on case features, EQ modes, MP3 playback and driver size; Tulbeys wins on total battery life and per-bud weight. Which one is "better" depends on whether you value a smart case or maximum hours.
They have ENC, which reduces background noise on your microphone so callers hear you more clearly. They are open-ear and do not block ambient sound for you — that's intentional for safety while running or cycling.
Yes. With a TF card inserted (card not included), the earbuds can play music independently as an MP3 player, with no phone or network needed. That's its standout feature versus the Tulbeys.
Both offer up to 8 hours of playback per charge. With their cases, Tulbeys states up to 50 hours total and Monster states up to 30 hours total.
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