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 grown-up sound tuning for travel, work and long listening sessions, choose Picun B8; if you need a safe, kid-first wireless headphone with a hard 85dB volume ceiling and a share-audio port for siblings, choose Skullcandy Grom.
• Picun B8 — biggest strength: a 1000mAh battery rated for up to 120 hours of playtime, plus dual 40mm dynamic drivers and three EQ modes (Pop / Bass Boost / Rock) you cycle with a double-press of the EQ button.
• Picun B8 — biggest trade-off: it has no volume limiting and no share-audio port, and charging is picky — it's specified for 5V/1A or 5V/2A adapters only, so fast chargers should be avoided.
• Skullcandy Grom — biggest strength: kids-first design, volume capped at 85dB with an override for noisy environments like planes, and a Share Audio Port so two listeners can watch the same movie.
• Skullcandy Grom — biggest trade-off: shorter runtime at up to 45 hours and a smaller, simpler feature set aimed at children rather than adult listeners.
• Who each pick is for: Picun B8 for teens and adults who want long battery, multipoint connection and a wired fallback for commuting, flights or the office; Skullcandy Grom for parents buying for a child aged 6+ who need hearing-safe volume and easy controls.
Picun B8 is built around one idea: keep the music going and don't make the listener think about charging. The 1000mAh battery is rated for more than 120 hours per full charge, and a full charge takes about 3 hours. Run the numbers in a normal week — four hours of listening a day — and you're looking at roughly a month between charges. That's the kind of headphone you toss in a bag for a trip and forget to pack the cable for.
Sound-wise, you get dual 40mm dynamic drivers with 32 ohm impedance, 42dB sensitivity and a 20Hz–20,000Hz range. There's no active noise cancellation here, so this isn't a headphone for blocking out a loud train. Instead, Picun leans on three EQ modes — Pop, Bass Boost and Rock — so you can tilt the tuning toward thump or toward vocals without touching your phone. There's also a low-latency mode you toggle by pressing the power button three times, which matters if you're gaming or watching video and want the audio to line up with the picture.
The physical design is aimed at long wear: skin-friendly PU leather and elastic sponge padding, an adjustable headband, and earcups that rotate up to 60° so the headphone folds flat for storage. Connections are flexible — Bluetooth 5.3 with a stated 33-foot range, plus a 3.5mm audio cable in the box for a wired session. Multipoint connection lets it hold two devices at once, which is the feature that quietly makes it a good office headphone: laptop and phone, one pair, no re-pairing dance. Controls are split between buttons for volume and touch gestures for calls — a single tap answers, a three-second touch rejects, and three taps wake or dismiss the voice assistant. There's a built-in microphone for hands-free calls, and iOS users get battery level shown on screen with volume buttons that adjust the phone directly.
Who should buy it: teens and adults who want one headphone for commuting, home office, movies and gaming, and who value battery life above all. Who should skip it: parents shopping for a young child, because there's no volume limiting, and anyone who needs active noise cancellation rather than passive isolation.
Skullcandy Grom is a different animal entirely, and it's honest about it. This is a headphone designed for kids aged 6 and up, with volume limited to 85dB — the kind of ceiling that exists so a child's ears aren't punished by a movie at full blast. If you've ever watched a kid crank the dial, that single spec is the whole pitch.
The controls are built for small hands and impatient users: a large main function button, a separate power button, and a volume wheel. The volume wheel isn't just a dial — it's also how you access the Volume Limit Override, which temporarily lifts the 85dB cap in genuinely loud places like an airplane cabin. That's a thoughtful compromise: safe by default, flexible when the environment forces it.
Battery is rated up to 45 hours, and Rapid Charge gives you 4 hours of listening from a 10-minute charge. That 10-minute figure is the one that matters in real life — it's the difference between a dead headphone on the school run and one that survives the ride. There's also a Share Audio Port, so two kids can plug in and watch the same movie on a road trip or flight, and the whole thing collapses for travel. A removable 3.5mm AUX cable is included, so it works as a wired headphone when the battery is flat or when a device has no Bluetooth.
Fit is kid-specific: an adjustable headband strap and smaller earcups sized for children rather than adult heads. The enclosure mixes metal, plastic and rubber — materials chosen with durability in mind. Bluetooth is 5.2 with a 10-meter stated range, and the audio side is 32 ohm impedance, 113dB sensitivity and a 20Hz–20KHz range with a dynamic driver.
Who should buy it: parents and gift-buyers shopping for a child 6+, especially for travel, school or shared screen time. Who should skip it: adults who want a serious listening headphone, multipoint, EQ modes or serious battery endurance — Grom isn't trying to be that.
• Best for battery life → Picun B8. Up to 120 hours versus up to 45 hours is not a close contest.
• Best for young kids → Skullcandy Grom. The 85dB volume limit and kid-sized earcups are the entire reason this product exists.
• Best for travel with children → Skullcandy Grom. The Share Audio Port and the Volume Limit Override for noisy cabins are made for exactly this.
• Best for commuting and office use → Picun B8. Multipoint connection, a 3.5mm wired option and 33-foot Bluetooth range make it the more flexible everyday headphone.
• Best for tuning your sound → Picun B8. Three EQ modes and a low-latency toggle give you options the Grom simply doesn't offer.
• Best for quick top-ups → Skullcandy Grom. A 10-minute charge for 4 hours of playback is the better emergency-charge behavior.
• Best for shared listening → Skullcandy Grom. Picun B8 has no share-audio feature.
• Best for hearing safety by default → Skullcandy Grom. Picun B8 has no volume limiting at all, so it's on the listener to be sensible.
In my opinion, you should buy the Picun B8 if the listener is a teen or adult. The 120-hour battery, dual 40mm drivers, three EQ modes, multipoint and the included 3.5mm cable cover more situations — flights, work calls, gaming, movies — than the Grom can, and none of those features feel like filler. I'd pick the Skullcandy Grom instead the moment the buyer is a child aged 6 or up, because 85dB volume limiting and a share-audio port aren't nice-to-haves for a kid; they're the point. In short: Picun B8 for grown-up endurance, Skullcandy Grom for kid-safe listening.
FAQ
how to headphones work
how to headphones on iphone
Pairing is done through your iPhone's Bluetooth settings — power the headphone on and select it from the device list. Picun B8 adds an iOS-specific touch: while connected to an iOS device it shows its battery level on screen, and its "+" and "-" buttons adjust the phone's volume directly. Skullcandy Grom pairs the same way over Bluetooth 5.2 and can also be used with the included AUX cable.
how to headphone mode off
If you mean switching out of Bluetooth and back to your phone's speaker, the simplest route is to turn the headphone off or disconnect it in your device's Bluetooth menu. Both models here have a dedicated power control. Picun B8 also lets you toggle its low-latency mode by pressing the power button three times, which is separate from powering the headphone down.
how to headphones
Getting started is straightforward on both: charge fully first, then power on and pair over Bluetooth. Picun B8 charges in about 3 hours and runs up to 120 hours, while Skullcandy Grom charges fast enough that 10 minutes gives you 4 hours of listening. For fit, Picun B8 has an adjustable headband and 60° rotating earcups; Grom has an adjustable headband strap with kid-specific ear cups.
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