If you want compact true wireless earbuds with bass customization, choose Anker Soundcore; if you need kid-focused over-ear headphones with volume limits, choose EarFun K2. For basketball, the Anker is the more practical fit of these two because it sits in the ear rather than using a headband, though neither product sheet establishes a secure sports fit or a specific sweat rating.
• Anker Soundcore P20i: Its standout strength is a compact true wireless design with 10mm drivers, app-based sound options, and up to 30 hours of total playtime with the case. Its trade-off is that its listed water protection is only described as water-resistant, with no specific rating.
• EarFun K2: Its standout strength is a foldable over-ear design with an 85/94 dB volume limit and up to 40 hours of playback. Its trade-off is its larger headband-and-earcup form, which is less convenient than earbuds for movement.
• Choose Anker if you want small, in-ear headphones for everyday listening, calls, and adjustable sound.
• Choose EarFun if you’re buying for a child or teen and prioritize a volume limit, cushioned over-ear coverage, and long playback.
• For basketball, neither is a fully documented sports-specific choice: Anker’s shape is less bulky, while EarFun’s listed design is focused on kids, school, and travel.
The Soundcore P20i is a true wireless in-ear model built around portable listening. Its 10mm drivers are described as bass-forward, and the soundcore app offers 22 EQ presets, including a bass-focused option. That gives listeners more ways to adjust the character of their music than a fixed sound profile would. The app also lets you customize touch controls, and a gaming mode is available for enhancing in-game audio.
The small case has an attached lanyard, so it can be carried in a pocket or clipped to a bag or keys. That is a practical detail for someone who wants earbuds close at hand without carrying a larger headphone case. Each earbud is listed for up to 10 hours of playback, with the case extending total playtime to up to 30 hours. A 10-minute quick charge is specified to add up to two hours of listening, which can help when you realize the battery is low before heading out.
For calls, the P20i has two built-in microphones and an AI-based voice pickup feature. It also supports single-earbud use, and the app’s “Find My Earbuds” feature can make a misplaced earbud emit a sound. Those details point to a flexible everyday set for commuting, calls, and casual listening—not just music at a desk.
Who should skip it: Skip the P20i if you specifically want a child-focused volume limit, an over-ear fit, or a stated waterproof rating. The sheet identifies it as water-resistant but doesn’t provide an IP rating, so I wouldn’t treat that wording as proof it is suitable for heavy sweat or wet conditions.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-18 · 9 min read · Independent comparison
For basketball, its in-ear form is less cumbersome than an over-ear headband, and the lanyard case is easy to carry between activities. But fit security during running and jumping is not specified, so I would not assume it will stay put through a full game. If your search is for the best sweatproof earphones for basketball, the missing specific sweat-protection rating is a meaningful limitation.
The EarFun K2 is a kids’ over-ear Bluetooth headphone, not a pair of earbuds. Its intended audience and its physical design are both important here: it has a headband, padded earcups, and a foldable structure for school or travel. The memory-foam headband and earpads are designed for a cushioned fit, while the product information describes the headband as adjustable for different head sizes. The stated age range is kids and teens.
Its defining feature is a selectable volume limit of 85 or 94 dB. That gives a parent a way to choose a capped listening level rather than relying only on a child to turn the volume down. The headphones also use 40mm drivers and are described as producing balanced stereo sound with clear vocals and bass. Their Bluetooth 5.4 connection is listed with a range of up to 70 feet, and a built-in microphone supports hands-free calls and online learning.
Battery life is listed at up to 40 hours, with a recharge time of about 2.5 hours. The K2 also includes a 3.5mm audio connection and cable, so it can be used in wired mode when Bluetooth isn’t being used or the battery has run down. Folding the earcups inward helps reduce the space it takes up in a school bag or during travel. These are useful school-and-trip features, but the K2’s over-ear design remains more noticeable to wear than compact earbuds.
Who should skip it: Skip the K2 if you want truly wireless earbuds for exercise, a compact case that fits in a pocket, or a product with a stated water-resistance rating. It is designed as a children’s headphone for listening, school, and travel—not as a sports earphone.
For basketball, a padded over-ear headphone can feel bulky and may be less convenient during active play than an in-ear model. The product sheet does not list a sweat or water rating, either. Although searches sometimes turn up phrases like “best waterproof gaming headset for basketball,” the K2 is neither described as waterproof nor presented as a basketball gaming headset. Its gaming suitability and sweat performance are not established by the listed features.
• Best fit for compact, everyday listening → Anker Soundcore. The P20i uses separate in-ear earbuds and a small case with a lanyard. The K2 has a headband and over-ear cups, a better match for home, school, or travel than pocket-sized carry.
• Best for a child who needs a volume cap → EarFun K2. It has stated limits of 85 or 94 dB. The Soundcore sheet does not list a volume-limiting feature.
• Best for adjustable sound → Anker Soundcore. Its app provides 22 EQ presets and customizable touch controls. EarFun’s listed strength is balanced stereo audio rather than app-based EQ choices.
• Best for long playback on a single charge → EarFun K2. Its listed battery life is up to 40 hours. The P20i offers up to 10 hours per charge, or up to 30 hours when its case is included.
• Best for a quick battery top-up → Anker Soundcore. A 10-minute charge is specified to provide up to two additional hours. The K2 lists a 2.5-hour charging time but does not specify a short-charge playback boost.
• Best for switching to a cable → EarFun K2. It includes a 3.5mm audio connection and cable. The P20i is wireless and has no headphone jack listed.
• Best for calls and online lessons → It depends on the wearer. The P20i has two microphones and AI-assisted voice pickup; the K2 has a built-in microphone and is positioned for hands-free calls and online learning.
• More practical of these two for basketball → Anker Soundcore, with a caveat. Its in-ear form is less bulky than the K2’s headband, but neither product sheet confirms a sports fit or a specific sweat rating.
My Verdict
For a child or teen, I’d choose the EarFun K2 instead. The volume-limit options, padded over-ear design, long stated playback time, and wired listening option make it the more relevant choice for school and travel. The decision comes down to priorities: compact earbuds and sound customization, or kid-focused headphones with a volume cap.
Before choosing, consider who will wear the headphones and where. The P20i’s in-ear format is designed to be carried easily and used in different everyday settings. The K2’s headband and earcups take up more room, but give it a padded over-ear design that is more directly aligned with kids’ listening, schoolwork, and travel. These are different types of products, so the right choice is not simply a matter of comparing battery figures.
For a child, the K2’s volume limit is a concrete feature to weigh. Its two stated cap options can be useful when you want a defined listening ceiling, and its included cable provides another way to connect. The P20i’s strengths are different: its app has EQ presets and control customization, its case extends total playback, and its quick-charge detail may be convenient for someone who often needs a short top-up.
For sports, be cautious about reading more into either product’s description than it says. The Soundcore is described as water-resistant, but no specific protection rating is supplied. The EarFun sheet gives no water or sweat rating. Neither one is documented as a basketball-specific model, and neither sheet confirms how securely it stays in place during vigorous movement. If those points are essential, check the full product details before deciding.
If battery runtime is your main concern, compare how each figure is stated: the K2 lists up to 40 hours, while the P20i lists up to 10 hours per charge and up to 30 hours including its case. If sound adjustments matter more, the Soundcore’s 22 EQ presets are the clearer advantage. If the current price affects your choice, check the current price on Amazon before buying; the feature comparison itself does not establish which one is the better deal.
The P20i is described as water-resistant, but no specific water-resistance rating is provided in the listed details. That is not enough information to call it waterproof or to confirm a particular level of sweat protection.
No. The EarFun K2 is a foldable, over-ear Bluetooth headphone for kids and teens. It has a padded headband and earcups, plus a 3.5mm audio connection for wired listening.
EarFun lists up to 40 hours of playback for the K2. Soundcore lists up to 10 hours on a charge for the P20i, with up to 30 hours total when the charging case is included.
Of these two, I’d lean toward the P20i because its in-ear design is less bulky than the K2’s over-ear headband. However, neither product sheet confirms a secure fit during play or a specific sweat rating, so neither can be called a proven basketball option based on these details alone.
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