If you want an open, wired listening setup for quiet rooms and focused music, choose Sennheiser HD 599; if you need wireless noise canceling for everyday listening and calls, choose Sony WH-CH720N. For kids, the Sony is the more practical pick when they need a wireless headset for travel or shared spaces, while the Sennheiser suits supervised listening at home.
• Sennheiser HD 599: Its open-back, around-ear design is built for a spacious presentation, with plush velour ear cushions and two detachable cables. The trade-off is that it is wired and does not actively cancel noise.
• Sony WH-CH720N: Its strongest advantages are wireless Bluetooth, active noise canceling, ambient sound options, and up to 35 hours of battery life. The trade-off is that it depends on charging and does not include a headphone jack.
• Choose the HD 599 for home listening where an open presentation and wired connection matter more than blocking outside sound.
• Choose the WH-CH720N for portable listening, wireless calls, and situations where noise control is useful.
The HD 599 is an over-ear, open-back wired headphone. Its design favors a sense of space rather than isolating the listener from the room. That makes it a natural fit for listening in a quiet place, such as a bedroom or home desk, where outside sound is not a problem. The listed frequency range is 12 Hz to 38,500 Hz, and the dynamic drivers use aluminum voice coils. Those figures describe its audio hardware, but they do not guarantee that every listener will prefer its sound.
Comfort is part of the appeal on paper: the ear cushions are velour, and the padded headband is designed for extended listening. Two detachable cables are included, one 3-meter cable with a 6.3 mm jack and a shorter 1.2-meter cable with a 3.5 mm jack. The shorter lead is more manageable near a phone or laptop; the longer one offers more reach around a home listening setup.
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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
I would consider the HD 599 for someone who mostly listens at home and is comfortable staying connected by cable. It may also appeal to a young listener using headphones in a calm room, with an adult able to manage the cable and listening environment. I would skip it for a child who needs a noise canceling wireless headset for kids, or for anyone who wants to move freely, take calls wirelessly, or reduce surrounding noise. Its open-back design and passive noise control do not provide the active noise canceling listed for the Sony.
The WH-CH720N is an over-ear wireless headphone with Bluetooth 5.2, active noise canceling, and an advertised battery life of up to 35 hours. Sony also lists quick charging: a 3-minute charge can provide up to 60 minutes of playback. That combination is useful for people who move between home, school, work, and travel and do not want a cable attached during ordinary listening.
Noise control is more flexible than simply turning cancellation on or off. The headphones offer adjustable Ambient Sound mode with 20 settings, so a listener can allow more environmental sound through when that is preferable. The product information also describes Adaptive Sound Control, which adjusts listening behavior to the environment. For calls, beamforming microphones and Precise Voice Pickup Technology are intended to help capture a voice clearly. The headphones can pair with two Bluetooth devices at once, which may be useful for switching between a computer and a phone.
For kids, the wireless design can be convenient when a cable would get in the way, and the product information lists children and teens among the intended age ranges. Still, the sheet does not give a volume-limiting feature, so parents who want that should not assume it is included. I would choose the Sony for a child or adult who needs wireless listening, noise canceling, or hands-free calls. I would skip it if a simple wired connection is the priority, or if the household wants headphones that never need charging. It has no headphone jack, so a wired listening option is not listed.
• Best for active noise canceling → Sony WH-CH720N. It has active noise canceling and Dual Noise Sensor technology; the Sennheiser is listed with passive noise control.
• Best for a spacious, open-back design → Sennheiser HD 599. Its open-back construction is the defining difference, although it also lets the listening environment remain part of the experience.
• Best for wireless listening → Sony WH-CH720N. Bluetooth 5.2 and a 10-meter listed Bluetooth range support untethered use.
• Best for long listening stretches without frequent charging → Sony WH-CH720N. Its battery life is listed as up to 35 hours, though actual use can vary.
• Best for choosing between two cable lengths → Sennheiser HD 599. It includes detachable 3-meter and 1.2-meter cables with different jack sizes.
• Best for calls and switching devices → Sony WH-CH720N. It has beamforming microphones and can pair with two Bluetooth devices at once.
• Best for a noise canceling wireless headset for kids → Sony WH-CH720N. Its wireless connection and active noise canceling fit that use better, but the product information does not list a volume limiter.
• Best for a straightforward wired home setup → Sennheiser HD 599. It needs no battery, but the listener has to stay connected to a compatible audio source.
I would choose the Sony WH-CH720N for most families, especially when kids need wireless listening for travel, calls, or busy surroundings. Its active noise canceling, ambient sound settings, and long listed battery life make it the more adaptable everyday option. For kids, I would still check whether its controls and noise-canceling use fit the family’s listening rules. I would pick the Sennheiser HD 599 instead for quiet-room listening where the open-back design and detachable cables are the main draw.
The Sony is the more practical fit for kids who need wireless listening or active noise canceling. The Sennheiser is a wired, open-back model better suited to a quiet home setup. Neither product’s listed features specify a volume-limiting control.
It is a wireless over-ear headphone with active noise canceling, Bluetooth 5.2, and a listed age range that includes kids and teens. That makes the description relevant to this use, but the available product information does not list a child-specific volume limit.
The HD 599 is listed as wired and comes with two detachable cables. Wireless connectivity is not specified, so it is not the option to choose if Bluetooth listening is essential.
The Sony is the clearer choice for hands-free calls based on the listed features: it has beamforming microphones and Precise Voice Pickup Technology. The Sennheiser’s supplied information does not specify a built-in microphone or call features.
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