If you want over-ear noise cancellation and a call-focused headset for a kid, choose Bose Headphones 700; if you need compact earbuds with a charging case, choose Sennheiser Momentum True. For a child who needs one clear, simple listening setup, I’d lean toward Bose; for exercise, portable listening, and a more customizable fit, Sennheiser has the stronger case.
• Bose Headphones 700: Over-ear design, 11 active-noise-cancelling levels, and a microphone system designed to keep calls clear; the trade-off is a larger headset rather than earbuds.
• Sennheiser Momentum True: Compact earbuds with adaptive noise cancellation, Transparency Mode, and a 28-hour total battery figure with the case; the trade-off is that comfort, sound, and call performance depend on choosing tips that fit.
• Bose suits: Someone who wants adjustable noise reduction, hands-free voice-assistant access, and an over-ear fit.
• Sennheiser suits: Someone who prefers in-ear listening, wants a secure fit for movement, and values a case that can recharge the earbuds on the go.
• These are not two versions of the same kind of headphone. Bose makes an over-ear Bluetooth headset with touch controls and up to 20 hours of wireless battery life. Sennheiser makes true wireless earbuds with multiple tip and fin sizes, adaptive noise cancellation, and a charging case. The right choice starts with how the listener prefers to wear headphones, not with the brand name.
The Bose Headphones 700 are the more straightforward pick for someone who wants headphones resting around the ears instead of earbuds sitting in the ear canal. Their stainless steel headband, over-ear placement, and tilted earcups are designed for a comfortable fit over longer listening sessions. That format may be easier to manage for a kid who dislikes the feel of in-ear tips, though the product is described for adults, so fit should be considered rather than assumed.
Noise control is a major part of the Bose design. There are 11 active-noise-cancelling levels, giving the listener a range of settings rather than a single fixed approach. That can be useful in changing environments, such as moving from a noisy room to a quieter one. Bose also provides touch controls on the earcups and access to Alexa and Google Assistant, so basic control and voice-assistant use do not always require reaching for a phone.
Calls are another reason to consider this model. Its microphone system is designed to adapt to noisy and windy surroundings and focus on the speaker’s voice. That makes it relevant for a child who may use headphones for calls as well as listening, although the listed features do not establish any specific parental controls or child-safety functions. The headset offers up to 20 hours of wireless battery life on a charge. The trade-off is its over-ear form: it is less compact than true wireless earbuds, and anyone specifically looking for a small set to tuck into a pocket may prefer Sennheiser.
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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-19 · 9 min read · Independent comparison
For everyday use, the Bose setup is easy to understand: put on the headset, adjust the noise-cancelling level, and use the earcup controls or voice assistant as needed. It includes a USB charging cable, audio cable, and carrying case. The listed battery charge time is 2.5 hours, so it is worth planning ahead if the headset has been run down before a long day. Its design is focused on a full-size, over-ear listening experience, rather than the smallest possible carry.
The Sennheiser Momentum True Wireless 3 is the better match for a listener who wants earbuds instead of a headband. The compact in-ear design comes with silicone ear adapters in XS, S, M, and L, plus fins in S, M, and L. That range offers more ways to adjust the fit, which matters because the data notes that tips that do not fit well can affect sound and call performance. A secure fit is not automatic; choosing the right combination is part of getting the intended experience.
Sennheiser’s feature set suits varied listening environments. Adaptive noise cancellation adjusts to changes in surrounding noise, while Transparency Mode lets outside sound back in. That gives the listener options for more immersive listening or for staying more aware of the surroundings. For a child using earbuds in everyday settings, that flexibility may be useful, but it does not replace adult judgment about where and when headphones are appropriate.
The earbuds also support sound customization through an equalizer, presets, and Sound Personalization. Multipoint connectivity lets them connect to two devices, a practical feature for someone switching between a phone and another compatible device. For calls, each earbud has three noise-cancelling microphones intended to prioritize speech over surrounding noise. They are rated IPX4 for splash resistance, which makes them a more relevant fit for exercise or light exposure to splashes than the Bose headset based on the listed features. That is not a claim of waterproofing.
Sennheiser lists up to seven hours of battery life for the earbuds and up to 28 hours of total play time with the charging case. The case supports Qi wireless charging, and the listed charging time is 1.5 hours. The trade-off is the in-ear fit: some listeners find earbuds comfortable and discreet, while others prefer not to have anything seated in the ear canal. There is no headphone jack, so this is a Bluetooth-only listening option.
Who should skip it: Skip Sennheiser if you dislike in-ear headphones, do not want to spend time finding the right tips and fins, or prefer an over-ear headset with a headband.
The fit options make these earbuds more adaptable than a one-size-only design, but they also create a setup step. Trying the included ear adapters and fins is important, especially if the earbuds are intended for calls or active use. The product information identifies travel, sports, and exercise as intended uses, while its compact design and charging case make it easier to carry than a full-size headset. On the other hand, people searching for wireless earbuds for side sleepers should remember that these are in-ear buds with a case and fins; the provided information does not establish that they are comfortable for sleeping on one’s side.
• Best for over-ear comfort → Bose Headphones 700. Its over-ear placement, stainless steel headband, and tilted earcups are built around a full-size headset fit.
• Best for adjusting noise cancellation → Bose Headphones 700. It provides 11 active-noise-cancelling levels, while Sennheiser uses adaptive noise cancellation.
• Best for in-ear portability → Sennheiser Momentum True. The compact earbuds and charging case suit someone who does not want to carry over-ear headphones.
• Best for a longer total battery figure with the case → Sennheiser Momentum True. It lists up to 28 hours overall, compared with Bose’s up to 20 hours of wireless battery life on a single charge.
• Best for calls in changing surroundings → Bose Headphones 700. Its microphone system is described as adapting to noisy and windy conditions; Sennheiser also includes three noise-cancelling microphones on each earbud.
• Best for sound and fit customization → Sennheiser Momentum True. It includes an equalizer, presets, Sound Personalization, several ear-tip sizes, and optional fins.
• Best for switching between two connected devices → Sennheiser Momentum True. Its multipoint feature supports connection to two devices.
• Best for exercise and splash resistance → Sennheiser Momentum True. The earbuds have an IPX4 rating and are described for sports and exercise use; the Bose sheet does not list a comparable resistance rating.
There are tempting searches that do not quite match either product. Someone looking for cheap open ear earbuds is looking for a different wearing style: both of these options cover or enter the ear rather than using an open-ear design. Likewise, the phrase best sweat resistant bone conduction headphones points to a different category. Sennheiser’s IPX4 rating and exercise use may make it the more relevant of these two for workouts, but it is not described as a bone-conduction product.
I would choose the Bose Headphones 700 for a kid if the priority is an over-ear fit, adjustable noise cancellation, and a microphone designed for clear calls. Its controls and voice-assistant access also make the feature set easy to navigate once the listener is familiar with it. I’d choose Sennheiser instead for a kid who prefers earbuds, needs a compact exercise-friendly design, or will benefit from multipoint and sound customization. My personal pick for the stated kid-focused use is Bose, because it avoids the need to find a snug ear-tip fit.
Before choosing, think about fit first. Bose sits over the ears; Sennheiser depends on earbuds and correctly sized tips. That distinction can matter more in daily comfort than a list of audio features. If the headphones are for a kid, make sure the wearing style is comfortable and manageable for that listener.
Next, consider where the headphones will be used. Bose offers several noise-cancellation levels, while Sennheiser pairs adaptive cancellation with Transparency Mode. The latter also has an IPX4 splash-resistance rating and is specifically described for sports and exercise. Neither detail should be stretched into a claim about safe use in every environment or protection from every kind of moisture.
FAQ
Bose may suit a kid who prefers over-ear headphones and does not want ear tips in the ear canal. Sennheiser may fit a kid who prefers compact earbuds, but the adult age-range description and the need to select properly fitting tips are worth considering.
Bose lists up to 20 hours of wireless battery life on one charge. Sennheiser lists up to seven hours from the earbuds and up to 28 hours of total play time with the case, so the totals describe different charging setups.
They are described for sports and exercise and have an IPX4 splash-resistance rating. That supports considering them for workout use, but it does not mean they are waterproof.
Bose has a microphone system designed to adapt to noisy and windy environments, plus 11 active-noise-cancelling levels. Sennheiser uses three noise-cancelling microphones on each earbud and adaptive noise cancellation; its performance and call pickup can be affected if the tips do not fit correctly.
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