We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-30 · 7 min read · Independent comparison
If you want marathon battery life and a full over-ear, closed-back listening experience for travel, study and long work sessions, choose Picun B8; if you need to stay aware of traffic, coworkers and conversation while music plays privately in your ears, choose Bose Open Earbuds.
• Picun B8 — biggest strength: up to 120 hours of playtime per charge from a 1000mAh battery, plus dual 40mm dynamic drivers, three EQ modes and multipoint Bluetooth in a foldable over-ear frame.
• Picun B8 — biggest trade-off: it is a traditional closed over-ear headphone with no noise control and no awareness design, so it seals you off from your surroundings and it is the bulkier thing to carry.
• Bose Open Earbuds — biggest strength: a clip-on open-ear design that leaves your ear canal completely open while OpenAudio and Immersive Audio deliver private sound, with IPX4 water resistance and a charging case.
• Bose Open Earbuds — biggest trade-off: far shorter runtime — about 7 hours per charge, dropping to roughly 4 hours with Immersive Audio on — and no wired fallback option.
• Pick the Picun B8 if you want maximum hours per charge, a wired 3.5mm backup and an affordable over-ear fit for long solo listening.
• Pick the Bose Open Earbuds if your priority is hearing the world around you while you listen, and you want something that stays put while running.
The Picun B8 is built around one number that jumps off the spec sheet: 120 hours of average battery life, backed by a 1000mAh cell that recharges in about 3 hours. If you listen roughly 4 hours a day, that arithmetic lands near a month between charges. In my opinion that single figure is the whole reason to consider this headphone — it removes the nightly charging ritual that plagues most wireless gear. You also get a 3.5mm audio cable in the box, so when the battery does finally run down you can keep listening wired instead of stopping.
Sound and controls are aimed at casual, adjustable listening rather than studio accuracy. Two 40mm dynamic drivers cover a 20Hz–20,000Hz range with 32 ohm impedance, and a dedicated EQ button cycles through Pop, Bass Boost and Rock modes so you can reshape the tuning without opening an app. Bluetooth 5.3 handles the wireless link with a stated 33-foot range and multipoint pairing, so a phone and a laptop can both stay connected. Controls are a hybrid of touch and buttons — volume via buttons, playback and calls via taps — and there is a built-in microphone for hands-free calls. Low-latency mode is switched on by pressing the power button three times, which matters if you game or watch video and hate lip-sync drift.
Comfort-wise this is a foldable over-ear with oval earcups, PU leather padding, elastic sponge, an adjustable headband and a 60-degree rotating earcup design, at 12.3 ounces. It folds down for a bag and the rotating cups help it adapt to different head shapes. Who should buy it: students, commuters, remote workers and anyone who wants long uninterrupted sessions, wired backup and physical buttons without thinking about charging. Who should skip it: people who need to hear their surroundings, anyone who wants active noise cancellation (there is none here), and buyers who want something pocketable. One practical note from the specs — this headphone is designed for 5V/1A or 5V/2A chargers, and higher-power fast chargers can cause abnormal heating or damage, so match your adapter.
The Bose Open Earbuds take the opposite approach: the earpiece sits outside your ear canal entirely, hooked gently around the back of your ear with a flexible joint. Nothing plugs you up, so ambient sound flows in while OpenAudio pushes your music in privately. In my opinion this is the design to pick if you have ever pulled an earbud out at a crosswalk, in an open-plan office, or mid-conversation. Bose Immersive Audio adds a spatialized layer that makes tracks feel like they are staged around you rather than inside your head — and it is a real trade-off, because playtime drops from up to 7 hours to about 4 hours with it enabled.
The charging case is the second half of the story. It holds roughly 2.5 extra full charges, giving up to 48 hours of standby, and tops up over USB-C. A full charge of the buds themselves takes about an hour. IPX4 water resistance plus an acoustic mesh that keeps out moisture and debris means sweat, splashes and light rain are not a problem — the spec sheet explicitly frames these as suitable even while running, and the light-as-air grip is designed to stay put during movement.
Connectivity is Bluetooth 5.3 with multipoint, so you can hop between a phone and a laptop without re-pairing, and a stated 30-foot range. Controls are deliberately simple: physical buttons on the earbuds switch between stereo and immersive modes, control music and answer calls, and deeper settings live in the Bose app, which also handles firmware updates. Setup is straightforward — open the case, hold the button on the back until the light blinks blue, then select the earbuds on your device. Who should buy it: runners, cyclists, office workers, parents and anyone who needs situational awareness as a feature, not an afterthought. Who should skip it: people who want maximum hours per charge, anyone who wants a wired option (there is no headphone jack), and listeners who prefer the isolation and deep seal of a closed over-ear.
Side-by-Side: Which Should You Choose?
• Best battery life → Picun B8. Up to 120 hours per charge versus about 7 hours on the Bose buds, or roughly 4 with Immersive Audio on.
• Best for awareness and safety → Bose Open Earbuds. The open-ear clip design keeps your ear canal clear so you hear traffic, announcements and people around you.
• Best for running and workouts → Bose Open Earbuds. IPX4 water resistance, a secure ear-hook grip and a design meant to stay in place while you move.
• Best for tuning your own sound → Picun B8. Three EQ modes — Pop, Bass Boost, Rock — switchable with a button press, no app required.
• Best for spatial, cinematic listening → Bose Open Earbuds. Immersive Audio is the headline feature, with the runtime cost that comes with it.
• Best for switching between phone and laptop → both. Each offers Bluetooth multipoint; the Picun B8 uses Bluetooth 5.3, the Bose buds also use 5.3.
• Best for carrying in a pocket → Bose Open Earbuds. A compact charging case versus a 12.3-ounce foldable over-ear headphone.
If I were buying for myself and my day is mostly desk work, commuting and long listening at home, I would take the Picun B8. The 120-hour battery, the wired fallback and the EQ modes solve the problems I actually run into, and I like being able to fold it into a bag. I would only switch to the Bose Open Earbuds if staying aware of my surroundings were non-negotiable — for running outdoors, working in a shared office, or cycling. That awareness is a genuine feature you cannot replicate by turning the volume down on a closed headphone. Different jobs, different picks.
how to headphones work
A wireless headphone like the Picun B8 receives audio over Bluetooth from your phone or computer and drives its 40mm dynamic drivers to produce sound; the Bose Open Earbuds do the same but sit outside your ear canal, projecting sound inward while letting outside noise pass through.
how to headphones on iphone
Pair either model through your iPhone's Bluetooth settings. With the Picun B8, once connected to an iOS device the headphone's battery level appears in the corner of the screen and the on-board plus and minus buttons adjust phone volume — a feature the spec sheet notes is iOS-only. The Bose buds connect by holding the case button until the light blinks blue, then selecting them in Bluetooth.
how to headphone mode off
If you mean turning off a listening mode: on the Picun B8 you press the power button three times to toggle low-latency mode, and the EQ button cycles sound modes. On the Bose Open Earbuds you press the on-board button to switch between stereo and Immersive Audio — which also restores the longer playtime.
how to headphones
To get the most from either pair: charge them, pair over Bluetooth 5.3, and use the controls you prefer — button volume and EQ on the Picun B8, or app-based control and mode switching on the Bose Open Earbuds. Check the current price on Amazon before deciding, since both sit in very different budget brackets.
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