If you want over-ear gym headphones with active noise cancellation and long playback, choose TREBLAB Z2; if you need a tiny, waterproof music player for swimming and wet workouts, choose Mighty Wave Waterproof IPX7. For most gym sessions where headphones are the main listening device, I’d choose the Z2; Wave is the more specialized pick when water resistance and phone-free music matter most.
• TREBLAB Z2 strength: over-ear design, active noise cancellation, and up to 58 hours of battery life. Trade-off: IPX4 sweat resistance is not the same as being built for swimming.
• Mighty Wave strength: compact, screen-free player with an IPX7 rating and up to 8 hours of battery life. Trade-off: it is a music player, not a self-contained pair of headphones; you need compatible headphones or speakers.
• Z2 also offers Bluetooth 5.3, multipoint connectivity, a 3.5 mm jack, and a stated 65 ms gaming mode. Wave has 8 GB of storage and downloads supported playlists for offline listening.
• Choose Z2 if you want headphones for a regular gym routine; choose Wave if your workout involves swimming or you want a small player without carrying your phone.
The Z2 is the straightforward choice if you want one over-ear pair for workouts and everyday listening. Its active noise cancellation can help reduce surrounding sound, while the 40 mm drivers and Bluetooth connection make it a conventional headphone setup rather than a separate music player. It also includes a 3.5 mm jack, giving you a wired option when Bluetooth is not the route you want to use.
Battery life is a strong practical point: the listed figure is up to 58 hours, with a stated charge time of three hours. Bluetooth 5.3, multipoint support, and a 33-foot Bluetooth range add flexibility for moving between connected devices and listening without staying right beside them. The foldable design and included case also suit someone who wants to pack the headphones away between sessions.
For gym use, the key limit is the IPX4 rating. That is described as sweatproof, but it is not the same water protection as Wave’s IPX7 rating, and the Z2 should not be treated as a swimming headphone. I’d choose it for indoor training, commuting, and general listening; I’d skip it if the main requirement is submersion-ready gear or a tiny player that works without a phone.
Wave is not a direct headphone substitute for the Z2. It is a compact music player, weighing 20 grams, and it comes with waterproof wired headphones. Its main appeal is the IPX7 rating: the stated test limit is up to one meter of water for 30 minutes. That makes it the more relevant option for lap swimming and wet environments.
The player has 8 GB of storage and can sync supported music for offline playback, so you can leave your phone behind. It is screen-free and has no notifications or popups, which keeps the device focused on playback. Its listed battery life is up to eight hours—enough for a series of workouts, but considerably shorter than the Z2’s stated maximum.
There are important service limits to weigh. Offline Spotify, Amazon Music Unlimited, or Amazon Music Prime requires the relevant subscription, and the listing says Spotify support ends beginning April 21, 2027. Podcasts and audiobooks are specified for Spotify users. Wave can also work with waterproof Bluetooth and wired headphones or speakers, but that compatibility does not turn it into a standard over-ear headphone set. I’d consider it for swimmers and phone-free workouts, not as my only pair of everyday gym headphones.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-19 · 10 min read · Independent comparison
• Best for swimming and wet environments → Mighty Wave. Its IPX7 rating is specifically described as tested up to one meter for 30 minutes; Z2 is IPX4 sweatproof.
• Best for noise reduction in a gym → TREBLAB Z2. It has active noise cancellation; no noise-cancellation feature is listed for Wave.
• Best if you want headphones as the main product → TREBLAB Z2. Wave is a player supplied with waterproof wired headphones, not a conventional over-ear headphone model.
• Best for leaving your phone behind → Mighty Wave. It stores music and syncs supported playlists for offline listening.
• Best for a compact, screen-free setup → Mighty Wave. Its listed weight is 20 grams, and its design avoids screens and notifications.
• Best for wired or Bluetooth listening flexibility → TREBLAB Z2. It includes a 3.5 mm jack and Bluetooth; Wave supports Bluetooth and Wi-Fi and can work with compatible wired or waterproof Bluetooth audio gear.
• Best for a typical indoor gym routine → TREBLAB Z2. The over-ear format, active noise cancellation, and longer battery life fit everyday sessions better, provided sweat resistance is enough for your use.
I’d buy the TREBLAB Z2 for the gym if I wanted one primary pair for training and everyday listening. Its over-ear design, active noise cancellation, and up-to-58-hour battery make it the more complete headphone choice.
I’d pick Mighty Wave instead for swimming, wet workouts, or phone-free offline playback. Its water protection is the decisive advantage, but it solves a narrower problem and has a shorter listed battery life.
No swimming capability is specified for the Z2. It is rated IPX4 and described as sweatproof, while Wave is rated IPX7 and has a stated test limit of one meter for 30 minutes.
Wave is primarily a compact music player, and the package includes waterproof wired headphones. It can also work with compatible waterproof Bluetooth or wired audio devices, but it is not an over-ear headphone set like the Z2.
For ordinary gym sessions, I’d choose the Z2 for its over-ear design, active noise cancellation, and longer stated battery life. Wave makes more sense when swimming, water exposure, or leaving a phone behind is central to the workout.
It can download Spotify music for offline playback when used with Spotify Premium, but the listing says Spotify will no longer be supported on Mighty beginning April 21, 2027. Amazon Music offline playback is also listed, subject to the relevant subscription.
If you want over-ear gym headphones with active noise cancellation and long playback, choose TREBLAB Z2; if you need a tiny, waterproof music player for swimming and wet workouts, choose Mighty Wave Waterproof IPX7. For most gym sessions where headphones are the main listening device, I’d choose the Z2; Wave is the more specialized pick when water resistance and phone-free music matter most.
• TREBLAB Z2 strength: over-ear design, active noise cancellation, and up to 58 hours of battery life. Trade-off: IPX4 sweat resistance is not the same as being built for swimming.
• Mighty Wave strength: compact, screen-free player with an IPX7 rating and up to 8 hours of battery life. Trade-off: it is a music player, not a self-contained pair of headphones; you need compatible headphones or speakers.
• Z2 also offers Bluetooth 5.3, multipoint support, a 3.5 mm jack, and a stated 65 ms gaming mode. Wave has 8 GB of storage and downloads supported playlists for offline listening.
• Choose Z2 if you want headphones for a regular gym routine; choose Wave if your workout involves swimming or you want a small player without carrying your phone.
The Z2 is the straightforward choice if you want one over-ear pair for workouts and everyday listening. Its active noise cancellation can help reduce surrounding sound, while its 40 mm drivers and Bluetooth connection make it a conventional headphone setup rather than a separate music player. It also includes a 3.5 mm jack, giving you a wired option.
Battery life is a practical advantage: the listed figure is up to 58 hours, with a stated charge time of three hours. Bluetooth 5.3, multipoint support, and a 33-foot Bluetooth range add flexibility for switching between connected devices and listening without staying right beside them. The foldable design and included case also make it easier to pack the headphones away between sessions.
For gym use, the key limit is the IPX4 rating. The Z2 is described as sweatproof, but that is not the same water protection as Wave’s IPX7 rating; it should not be treated as a swimming headphone. I’d choose it for indoor training, commuting, and general listening. I’d skip it if your main requirement is water protection for swimming or a tiny player that works without your phone.
Wave is not a direct headphone substitute for the Z2. It is a compact music player that weighs 20 grams and comes with waterproof wired headphones. Its main appeal is the IPX7 rating: the stated test limit is up to one meter of water for 30 minutes. That makes it the more relevant option for lap swimming and wet environments.
The player has 8 GB of storage and can sync supported music for offline playback, so you can leave your phone behind. It is screen-free and has no notifications or popups, keeping the device focused on playback. Its listed battery life is up to eight hours—enough for multiple workouts, but considerably less than the Z2’s stated maximum.
There are service limits to consider. Offline Spotify, Amazon Music Unlimited, or Amazon Music Prime requires the relevant subscription, and the listing says Spotify support ends beginning April 21, 2027. Podcasts and audiobooks are specified for Spotify users. Wave can also work with waterproof Bluetooth and wired headphones or speakers, but that does not make it a standard over-ear headphone set. I’d consider it for swimming and phone-free workouts, not as my only pair of everyday gym headphones.
• Best for long stretches between charges → TREBLAB Z2. Its listed battery life reaches 58 hours, compared with Wave’s eight hours.
• Best for swimming and wet environments → Mighty Wave. Its IPX7 rating is specified as tested up to one meter for 30 minutes; Z2 is IPX4 sweatproof.
• Best for noise reduction in a gym → TREBLAB Z2. It has active noise cancellation; no noise-cancellation feature is listed for Wave.
• Best if you want headphones as the main product → TREBLAB Z2. Wave is a player supplied with waterproof wired headphones, not a conventional over-ear headphone model.
• Best for leaving your phone behind → Mighty Wave. It stores music and syncs supported playlists for offline listening.
• Best for a compact, screen-free setup → Mighty Wave. Its listed weight is 20 grams, and its design avoids screens and notifications.
• Best for wired or Bluetooth listening flexibility → TREBLAB Z2. It has a 3.5 mm jack and Bluetooth; Wave supports Bluetooth and Wi-Fi and can work with compatible wired or waterproof Bluetooth audio gear.
• Best for a typical indoor gym routine → TREBLAB Z2. The over-ear format, active noise cancellation, and longer battery life suit everyday sessions better, provided its sweat resistance is enough for your use.
My Verdict
I’d buy the TREBLAB Z2 for the gym if I wanted one primary pair for training and everyday listening. Its over-ear design, active noise cancellation, and up-to-58-hour battery make it the more complete headphone choice.
No swimming capability is specified for the Z2. It is rated IPX4 and described as sweatproof, while Wave is rated IPX7 and has a stated test limit of one meter for 30 minutes.
Wave is primarily a compact music player, and the package includes waterproof wired headphones. It can also work with compatible waterproof Bluetooth or wired audio devices, but it is not an over-ear headphone set like the Z2.
For ordinary gym sessions, I’d choose the Z2 for its over-ear design, active noise cancellation, and longer stated battery life. Wave makes more sense when swimming, water exposure, or leaving a phone behind is central to the workout.
It can download Spotify music for offline playback when used with Spotify Premium, but the listing says Spotify will no longer be supported on Mighty beginning April 21, 2027. Amazon Music offline playback is also listed, subject to the relevant subscription.
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