If you want wired, closed-back headphones for focused listening, choose Superlux HD660PRO; if you need wireless convenience for everyday listening, choose TOZO HA1. For swimming, though, neither is presented with water-resistance or swimming-specific features, so I would not treat either as a suitable swimming headphone.
That distinction matters more than the shared over-ear design. The Superlux is built around a wired connection and studio-oriented use, while the TOZO adds Bluetooth, app-based sound adjustment, active noise cancellation, and a long stated battery life. Those features suit different routines, but neither product’s listed specifications establish that it can handle water.
• Superlux HD660PRO strength: Wired, closed-back design with 40 mm drivers, a 3.5 mm plug, and a 6.3 mm adapter. Trade-off: It has no wireless connection or listed noise-control feature.
• TOZO HA1 strength: Bluetooth 5.4, app-based sound customization, active noise cancellation, and a stated battery life of up to 70 hours. Trade-off: It needs charging, and its over-ear design is not specified for swimming.
• Superlux HD660PRO is for: Listeners who want a direct wired connection for a laptop, tablet, phone with a compatible jack, or studio gear.
• TOZO HA1 is for: People who prefer wireless listening, adjustable sound settings, and features aimed at travel, calls, work, or everyday use.
• For swimming: Neither has swimming-specific or water-resistance information in its listed specifications, so neither is the clear pick for use in a pool.
The HD660PRO is an over-ear, closed-back wired headphone with 40 mm dynamic drivers and a 32-ohm impedance. Its straightforward setup is a real advantage if you want to connect directly to equipment rather than manage a wireless connection or battery. The included connection options are a 3.5 mm plug and a 6.3 mm adapter, giving it a practical place in a home recording setup or at a desk with compatible audio gear.
Its 8.2-foot straight cable gives you some room to move around a listening or recording space, but it also means you are physically tethered to the device. That is a sensible trade for mixing, podcast work, or focused listening near a laptop or mixer. It is less convenient when you want to move freely around a room, and it is not the kind of setup I would choose for exercise or swimming. No water-resistance rating or swimming-oriented design is listed.
The product information describes velvet ear pads, an adjustable headband, and swivel ear cups. Those details point toward a headphone intended for extended indoor listening and a customizable fit, not a compact, waterproof swimming headset. I would consider the Superlux if my priority were a wired over-ear option for recording or everyday listening at a desk. I would skip it if Bluetooth, active noise cancellation, portability without a cable, or swimming use were central requirements.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
TOZO HA1: Who It's For
The TOZO HA1 takes a more feature-heavy everyday approach. It connects over Bluetooth 5.4, has button controls, and can also connect through a 3.5 mm AUX option. Its app offers sound customization, while active noise cancellation and a microphone with call-focused noise reduction are included among its listed features. That combination makes it more versatile for wireless listening, calls, and commuting than the wired-only Superlux.
TOZO states a battery life of up to 70 hours and a two-hour charging time. Those figures make the HA1 appealing for people who would rather charge occasionally than plug in every time they listen. It also lists a low-latency mode with a stated delay of 78 milliseconds, which may be useful for watching video or other audio-and-picture use. Bluetooth range is listed as 15 meters, though the actual connection experience can vary with surroundings and connected devices.
• Best for a wired desk or studio setup → Superlux HD660PRO. The 3.5 mm plug and included 6.3 mm adapter make it the more direct choice for compatible audio equipment.
• Best for wireless listening → TOZO HA1. Bluetooth 5.4 lets you listen without a cable, and the listed Bluetooth range is 15 meters.
• Best for someone who does not want to manage a battery → Superlux HD660PRO. It uses a wired connection rather than a rechargeable wireless setup.
• Best for longer stretches between charges → TOZO HA1. Its stated battery life is up to 70 hours, with a listed two-hour charging time.
• Best for app-based sound adjustment → TOZO HA1. Its companion app provides customizable sound settings, including 32 custom EQ modes as described in the product information.
• Best for a simple connection to recording equipment → Superlux HD660PRO. Its wired design and 6.3 mm adapter suit compatible studio gear without relying on Bluetooth.
• Best for calls and video use → TOZO HA1. Its listed features include call noise reduction and a low-latency mode with a stated 78 ms delay.
• Best for swimming → Neither. Neither product’s listed specifications confirm water resistance or a swimming-ready design, so I would look for a model specifically documented for use in water.
It is tempting to treat over-ear headphones as interchangeable once both have 40 mm drivers and a 32-ohm impedance. Those shared figures do not make them the same kind of purchase. The Superlux puts its emphasis on a wired connection and use with audio gear. The TOZO puts its emphasis on wireless features, app adjustments, calls, and battery-powered convenience.
The connection method is a practical dividing line. With the Superlux, the cable is always part of the routine. That makes it easy to use with a compatible jack, but less convenient when you want to walk away from your device. With the TOZO, Bluetooth makes movement easier, though wireless use depends on the headphone being charged and connected. The HA1 also has an AUX option, so it is not limited to Bluetooth, but its standout convenience features are wireless.
For sound customization, the TOZO has the clearer feature advantage because the app includes EQ options. The Superlux is the more straightforward pick if you want a wired headphone and do not need app-based controls. Neither choice can be declared a guaranteed match for every listener from specifications alone. The useful question is which setup fits your listening routine: cable and compatible equipment, or Bluetooth and rechargeable convenience.
If your search began with the best earbuds for swimming, these are also an imperfect match in form. Both are described as over-ear headphones, and neither product information gives a swimming-specific design. I would not infer that either can be safely used in a pool just because one connects wirelessly or the other has a closed-back enclosure. For swimming, look for explicit documentation of water suitability and a design intended for use in the water.
My Verdict
I would choose the TOZO HA1 for everyday listening because Bluetooth, app-based EQ, active noise cancellation, call features, and its stated battery life offer more flexibility for regular use. I would choose the Superlux HD660PRO instead when a wired connection to compatible studio or desk equipment matters more than wireless convenience.
For swimming, my recommendation is neither. The listed information does not confirm that either headphone is water-resistant or intended for pool use. If swimming is the main reason you are shopping, I would look for a product with swimming suitability clearly documented rather than assume that either of these over-ear models will work in water.
FAQ
Neither product’s listed information confirms water resistance or swimming-specific use. Both are described as over-ear headphones, so I would not choose either for a pool based on the available specifications.
It may suit you better if you want wireless listening, app-based EQ, active noise cancellation, and call features. The Superlux is a more fitting choice if you prefer a wired connection and need its included 3.5 mm plug or 6.3 mm adapter for compatible equipment.
The TOZO HA1 is the more feature-oriented option for wireless use, calls, and travel, with Bluetooth, active noise cancellation, and a stated long battery life. The Superlux HD660PRO is the more direct pick for a desk or studio setup where a wired connection is convenient. Check the current price on Amazon if price is part of your decision, since the right choice still comes down to the features you will actually use.
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