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 and a charging case you can top up from anywhere, choose Delton Ultralight; if you need an open-ear fit that keeps your ears free while you take calls, choose MAIRDI Open Ear Bone.
• Delton Ultralight — biggest strength: a claimed 100 hours of talk time, 90 days of standby, Type-C fast charging plus a charging case, and a Bluetooth 5.0 radio that holds two devices at once. It's built for people who live on calls.
• Delton Ultralight — biggest trade-off: it's a single-ear, over-ear-hook design with sound isolation rather than an open-ear speaker, so you're deliberately blocking one ear and the audio is mono, not stereo.
• MAIRDI Open Ear Bone — biggest strength: true bone conduction drivers on an open-ear, 32 g titanium-alloy neckband, with an adjustable boom mic, AI dual-mic noise canceling, Bluetooth 5.3 and a bundled USB dongle for PCs without Bluetooth.
• MAIRDI Open Ear Bone — biggest trade-off: an 8-hour battery means charging most days, and bone conduction trades bass depth for situational awareness by design.
• Pick Delton if you want the longest possible time between charges and dual-device switching.
• Pick MAIRDI if you want your ears open, a boom mic in front of your mouth, and plug-and-play PC audio.
The Delton Ultralight is, in plain terms, a call machine. The headline spec is 100 hours of talk time and 90 days of standby from a battery that recharges in about 3 hours over Type-C — and, unusually, it also ships with a charging case. That combination matters more than it sounds: two ways to top up means you can leave the case on a desk and still charge by cable when you travel. If you take back-to-back calls, drive long routes, or spend the day on softphones, that is the whole point of the product.
The setup story is deliberately frictionless. There's an auto-pair USB dongle in the box, and Delton says there are no drivers and no software — plug it in, pair it, and you're on a call. Bluetooth 5.0 gives you roughly 10 meters of range, and the headset can hold two devices at once, so you can sit on a laptop meeting and still catch a call on your phone. The rotating mic flips for left- or right-ear wear, and you get three sizes of cushions plus an adjustable earband to dial in the fit. On-device touch controls handle volume, track skipping and voice-assistant activation, and there's a mute button.
MAIRDI Open Ear Bone: Who It's For
The MAIRDI Open Ear Bone takes the opposite approach: instead of sealing an ear, it sits outside it and sends sound through bone conduction drivers. Nothing blocks your ear canal. That means you hear traffic, coworkers, announcements and your own voice naturally — which is exactly why bone conduction has become popular for drivers, cyclists, warehouse floors, home offices and anyone who wears a helmet or glasses. MAIRDI leans into that with an upgraded titanium-alloy neckband that's designed to hug the ear without slipping, at a claimed 32 g.
The mic setup is where it earns its keep for work calls. There's an adjustable boom microphone rather than an in-ear pickup, and MAIRDI pairs it with AI dual-microphone noise canceling that it says knocks out up to 98% of background noise. The connectivity is the newer spec of the two: Bluetooth 5.3 with multipoint for two devices, plus a USB Bluetooth adapter in the box so you can plug straight into a PC or laptop that has no Bluetooth at all. Charging is magnetic, which removes the cable-fumbling part of your day.
The honest trade-offs: 8 hours of music and calls is a workday, not a workweek — expect to charge nightly, with 200 hours of standby softening the blow. And bone conduction physically can't move as much air as a sealed driver, so bass is present but not deep. MAIRDI talks about a bass vocal vibrator and reduced leakage, but if thumping low end is your priority, an open-ear design is the wrong category. Skip this one if you want maximum battery life or a single discreet earpiece.
Side-by-Side: Which Should You Choose?
• Best for battery life → Delton Ultralight. 100 hours of talk time versus 8 hours is not a close comparison.
• Best for PC and laptop calls without fuss → MAIRDI Open Ear Bone. Bluetooth 5.3, multipoint and a USB dongle for machines with no Bluetooth at all.
• Best for all-day single-ear comfort → Delton Ultralight. Rotating mic, adjustable earband and three cushion sizes let you tune the fit.
• Best for mic clarity in loud places → MAIRDI Open Ear Bone. A boom mic plus dual-mic noise canceling is the stronger voice-capture setup on paper.
• Best for charging convenience → Delton Ultralight. A charging case plus Type-C fast charging gives you two ways to refuel.
• Best for workouts and helmets → MAIRDI Open Ear Bone. The 32 g titanium neckband is built to stay put during movement.
• Best if you want stereo music → neither, strictly. Delton is single-ear; MAIRDI is open-ear. Both are call-first designs.
If I were buying one, I'd buy the Delton Ultralight. The 100-hour battery, the charging case and the plug-and-play dongle solve the three things that actually annoy people about Bluetooth headsets on a PC: charging constantly, forgetting the cable, and fighting with pairing. The trade is real — one ear, mono audio, no open-ear awareness — but for meetings, softphones and long call days, I think it's the more useful tool. I'd only switch to the MAIRDI Open Ear Bone if keeping both ears open or having a boom mic at my mouth mattered more than battery life, which for a lot of outdoor and warehouse work it genuinely does. Either way, check the current price on Amazon before you commit.
how to connect bluetooth headphones for pc
On a PC that already has Bluetooth, open Settings, turn Bluetooth on, put the headset in pairing mode and select it from the device list. Both of these headsets also ship with a USB dongle or adapter, which is the simpler route on a desktop that has no Bluetooth radio at all — plug it in and pair through that instead.
how to use bluetooth headphones for pc
Once paired, set the headset as both the output and input device in your sound settings, then pick it inside whichever app you're calling from, such as a meeting or softphone client. The Delton Ultralight can hold a computer and a phone at the same time, and the MAIRDI Open Ear Bone supports multipoint pairing too, so you can switch between them without re-pairing.
how to bluetooth headphones to pc
Enable Bluetooth on the computer, hold the headset's power or pairing button until the indicator flashes, then add a device and choose the headset from the list. If the PC doesn't offer Bluetooth, use the bundled USB adapter — MAIRDI's is plug and play, and Delton's dongle is described as auto-pairing with no drivers or software.
how to pair bluetooth headphones pc
Turn the headset off and back on while holding the pairing control, then complete the pairing on the PC within a minute or so, since pairing mode usually times out. If it doesn't appear, remove any old entry for that headset from the PC's Bluetooth list first, then run the pairing again — stale entries are the most common reason a headset won't reconnect.
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: Shokz OpenDots ONE Open-Ear vs mojawa Purra Swim Bone, Wigfar Open Ear Headphones vs MONMZ Bone Conduction, EaseBurn Open Ear vs Bayhanc Bone Conduction Headphones