If you want exceptionally long battery life and a foldable design for studying, choose Edifier W830NB; if you need a lighter headset with adjustable ambient sound, choose Sony WH-CH720N. For long study sessions away from a charger, I’d lean Edifier; for wearing headphones while moving between work and conversations, Sony has the clearer case.
• Edifier W830NB strength: Up to 94 hours of playback with ANC off, plus fast charging and foldable construction. Trade-off: At around 265 g, it weighs more than the Sony.
• Sony WH-CH720N strength: A lighter 192 g design, adjustable ambient sound, and up to 35 hours of battery life. Trade-off: Its listed battery life is much shorter than Edifier’s.
• Edifier W830NB is for listeners who prioritize long stretches between charges, LDAC support, and a portable folding design.
• Sony WH-CH720N is for listeners who prioritize lighter over-ear headphones, environmental awareness options, and hands-free calling features.
The Edifier W830NB is the battery-first choice. It offers up to 94 hours of music playback with ANC off, and a 15-minute fast charge can provide up to 10 hours of use. That combination suits a student who wants to carry one pair of headphones through a heavy week of study without making charging part of every day’s routine. Among these two, it is the stronger match for anyone searching for best long battery life bluetooth headphones for studying.
Its feature set also gives you more than endurance. The 40 mm dynamic drivers support LDAC, and Edifier lists four ANC modes with noise reduction of up to 45 dB. There is also spatial audio, multipoint connectivity, and DNN noise reduction for calls. The headphones fold, which gives them an advantage when you need to pack them away between the library and home.
The trade-off is weight: the W830NB weighs around 265 g, compared with 192 g for the Sony. That difference may matter if you wear headphones for several hours at a stretch or strongly prefer a lighter fit. I’d choose Edifier if battery life, folding, and LDAC are central to the decision; I’d skip it if wearing the lightest headset possible matters more.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-21 · 6 min read · Independent comparison
Sony’s strongest argument is its weight. At 192 g, the WH-CH720N is lighter than the Edifier, and its over-ear design is described as having more space around the ears. For someone settling into a long study block, that lighter construction is a practical point in its favor, even though the product information alone can’t establish how comfortable it will feel on every head.
Sony also gives you more ways to stay aware of your surroundings. Its adjustable Ambient Sound mode has 20 settings, and Adaptive Sound Control adjusts the experience to suit the environment. That is useful if you want to hear some nearby activity without taking the headphones off—say, when studying in a café or listening for an announcement. The Dual Noise Sensor system and Integrated Processor V1 support its noise-cancelling feature, while beamforming microphones and Precise Voice Pickup Technology are intended to make hands-free calls clearer.
The main compromise is battery life: Sony lists up to 35 hours, compared with Edifier’s 94 hours with ANC off. A three-minute quick charge provides up to an hour of playback, which is handy when you forget to charge before heading out. Still, if long intervals between charges are your priority, Sony is the less compelling fit. Choose it for lower weight, adjustable ambient sound, and voice-call features—not for maximum listed endurance.
• Best for longer stretches between charges → Edifier W830NB. Its listed playback reaches 94 hours with ANC off; Sony lists up to 35 hours.
• Best for a lighter over-ear option → Sony WH-CH720N. It weighs 192 g, while Edifier is around 265 g.
• Best for fast top-ups → Edifier W830NB. A 15-minute charge is listed for up to 10 hours of use; Sony lists up to one hour from a three-minute charge. The charging windows are different, so consider which kind of top-up suits your routine.
• Best for adjustable awareness of your surroundings → Sony WH-CH720N. Its Ambient Sound mode offers 20 settings, alongside Adaptive Sound Control.
• Best for folding away between classes → Edifier W830NB. Its design is listed as fully foldable; the Sony information does not specify a folding design.
• Best for LDAC support and spatial audio → Edifier W830NB. It lists LDAC decoding, 40 mm dynamic drivers, and spatial audio.
• Best for hands-free calls → Sony WH-CH720N. Its beamforming microphones and Precise Voice Pickup Technology are built around voice capture; Edifier lists DNN noise reduction for calls.
• Best for switching between a phone and another device → Either. Both list multipoint connectivity, so this feature does not separate them.
For studying, there is no single feature that settles the choice for everyone. If you plan to keep headphones on your desk and want fewer charging interruptions, Edifier’s battery advantage is striking. If you move around, take calls, and want a lighter headset with adjustable awareness, Sony’s strengths are more relevant.
It’s also worth being precise about what the listed noise figures tell you. Edifier specifies noise reduction of up to 45 dB and four ANC modes. That does not establish how either will perform in a particular room or against a specific sound. For a study space, the practical distinction is that Edifier gives a stated maximum figure and mode count, while Sony emphasizes ambient adjustment and environmental adaptation.
My Verdict
I would choose the Edifier W830NB for studying because its 94-hour listed battery life with ANC off, foldable design, and LDAC support make a strong combination for extended listening and carrying between study spots.
The Sony WH-CH720N is the better fit if lighter weight and adjustable ambient sound matter more to you than maximum battery life.
My recommendation is Edifier for the buyer whose main concern is charging less often; Sony remains a sensible alternative for the lighter, more adjustable option.
Edifier lists up to 94 hours of playback with ANC off. Sony lists up to 35 hours. Edifier’s figure is specifically for ANC off, so keep that condition in mind when comparing the numbers.
The Sony WH-CH720N weighs 192 g, while the Edifier W830NB weighs around 265 g. Sony has the weight advantage, although comfort is personal and can’t be determined from weight alone.
Which headphones have more adjustable noise and awareness controls?
No. Both products are over-ear wireless headphones, not earbuds. Edifier specifically lists a fully foldable design; the Sony product details provided do not specify that it folds.
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