How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a newer Bluetooth standard, a rotating boom mic and the lightest possible fit for all-day calls, choose GREYOLK Open Ear Headphones; if you need a helmet-friendly, metal-framed headset with a dedicated mute button and on-body volume controls for trucking, driving and noisy job sites, choose Smof Open-Ear Headphones.
• GREYOLK biggest strength: Bluetooth 5.4 plus a 270° rotatable AI noise-cancelling boom mic and a 32 g body — the lightest of the two on paper.
• GREYOLK biggest trade-off: 2-year warranty and touch/button controls are fine, but the mic arm is the whole story here — there's no dedicated mute button listed.
• Smof biggest strength: Aluminum alloy frame with soft silicone ear hooks, a physical mute button and separate volume buttons — built for helmets, glasses and long driving shifts.
• Smof biggest trade-off: Bluetooth 5.1 (older) and a listed weight of 200 g in the item details, which is a big spread against GREYOLK's 32 g — worth noting the bullet copy says 41 g, so treat the weight figures with a bit of caution.
• Pick GREYOLK if you want the newest Bluetooth spec, the lightest fit and a mic you can swing out of the way.
• Pick Smof if you want physical buttons, a mute switch and a metal frame that survives being worn with a helmet.
The GREYOLK V3 is built around one idea: keep your ears open, keep your calls clear, and keep the thing light enough that you forget it's there. At 32 g with an ABS body and oval open-ear drivers, it's the kind of headset you put on at 9 a.m. and only remember when someone calls. The 15 mm drivers and 20 Hz–20,000 Hz range cover the full audible span, so music and speech both come through with reasonable depth for an open-ear design.
The headline feature for buyers searching "bluetooth headset" is the 270° rotatable microphone paired with AI noise cancellation. That swing arm lets you park the mic near your mouth for calls and push it aside when you're not talking — genuinely useful if you're moving between a meeting and a workout. Bluetooth 5.4 is the newer standard of the two, and the 10 m range is standard for the category. Battery is quoted at 10 hours of talk time in the specs and 10 hours of music time in the description notes, with a 2-hour charge over USB-C.
Who should buy it: remote workers, commuters, joggers and anyone who wants the latest Bluetooth version and the lightest possible open-ear fit. Who should skip it: if you live in a helmet, need one-touch muting, or want physical volume buttons, the Smof is the more practical tool. Also note the MFB doesn't work with desk phones or landlines — this is a Bluetooth-only headset.
The Smof LK02 reads like a headset designed by someone who spends ten hours behind a wheel. The frame is aluminum alloy with silicone ear pads, and the ear hooks are described as clamping close to the back of the ear so they stay put under a helmet and around glasses. That's the whole pitch: stable, durable, and comfortable in situations where a flimsier plastic headset would shift or drop.
Controls are the other differentiator. You get a multifunction button for play, pause, answer, end and voice assistant, plus a separate volume rocker — and critically, a mute button. For call-center work, online teaching or dispatch driving, a hardware mute is worth more than a slightly newer Bluetooth version. Audio runs through a balanced armature driver with 16 ohm impedance and the same 20 Hz–20,000 Hz range, and Bluetooth 5.1 with APTX support is quoted for stable transmission and audio/video sync.
Battery is listed at 8 hours talk time or 10 hours listening, with a 2-hour charge. Compatibility is broad — phones, PC, laptops, tablets, watches — which makes it a decent fit for a mixed-device desk. Who should buy it: truck drivers, delivery riders, warehouse and field workers, online teachers and anyone who wears a helmet or glasses all day. Who should skip it: if you want the lightest possible headset or the newest Bluetooth spec, GREYOLK wins those two categories.
• Best Bluetooth version → GREYOLK Open Ear Headphones (Bluetooth 5.4 vs 5.1).
• Best for weight and all-day comfort → GREYOLK Open Ear Headphones (32 g listed vs 200 g in Smof's item details, though Smof's own copy says 41 g).
• Best for helmet, glasses and driving use → Smof Open-Ear Headphones (aluminum alloy frame, silicone ear pads, hooks that stay put under a helmet).
• Best for one-touch muting on calls → Smof Open-Ear Headphones (dedicated mute button; GREYOLK lists no mute control).
• Best for physical volume control → Smof Open-Ear Headphones (separate volume buttons; GREYOLK relies on its multifunction button).
• Best for a swing-away mic → GREYOLK Open Ear Headphones (270° rotatable boom; Smof's mic is fixed).
• Best for audio spec on paper → a tie — both cover 20 Hz–20,000 Hz, though GREYOLK uses a 15 mm dynamic driver and Smof a balanced armature.
• Best for mixed-device desks → Smof Open-Ear Headphones (explicitly lists phones, PC, laptops, tablets and watches as compatible).
My Verdict
I'd buy the GREYOLK Open Ear Headphones. In my opinion, Bluetooth 5.4, the rotatable noise-cancelling boom mic and the 32 g weight make it the better everyday headset for calls, commuting and workouts — and the lighter the thing is, the more likely you actually are to wear it. The Smof is the smarter pick if you drive for a living or wear a helmet, because hardware mute and a metal frame beat a newer Bluetooth version in those jobs. For most people reading this comparison, though, GREYOLK is the one I'd hand over.
how to bluetooth headset to pc
Pairing an open-ear headset to a PC follows the same basic steps either way. Put the headset in pairing mode, open your computer's Bluetooth settings, and select the headset from the list of available devices. Both GREYOLK and Smof are listed as compatible with PCs, laptops and tablets, and GREYOLK's manual notes that you should confirm your device actually supports Bluetooth first.
how to bluetooth headset to ps5
The PS5 doesn't accept standard Bluetooth audio headsets directly, so neither of these will pair to it the way they do to a phone. The usual workaround is a USB Bluetooth transmitter plugged into the console, then pairing the headset to that transmitter. Check the transmitter supports the headset's Bluetooth version — GREYOLK is 5.4 and Smof is 5.1.
how to bluetooth headset to xbox
Xbox consoles also block direct Bluetooth audio pairing. You need either an Xbox-licensed wireless adapter or a USB Bluetooth dongle connected to the console, then pair the headset to the dongle. On both headsets, put them in pairing mode and search from the adapter's app or the console's accessory menu.
how to bluetooth headset to xbox series s
Same situation as the standard Xbox: the Series S has no open Bluetooth audio profile. Use a compatible USB Bluetooth transmitter in one of the console's USB ports, pair the headset to it, then route game audio through that transmitter. Neither GREYOLK nor Smof lists console-native pairing in its specs.
If price matters to you, check the current price on Amazon for both — this page has a button for that — and weigh it against whether you need hardware mute and helmet stability or the newer Bluetooth spec and lighter frame.
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: AKG Pro Audio 2458X00190 vs Audio-Technica ATH-M50x, THE PERFECT PART Bass vs MMWOWARTS Hybrid Active Noise, S.M.S.L DL100 vs AIYIMA H4: Hi-res Headphones, Ainostone Transmitter Receiver 3-in-1 vs ACEFAST AceFit Pro Open-Ear