We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-30 · 7 min read · Independent comparison
If you want an in-ear sport earbud that seals out the world and disappears into your pocket, choose C5G CSG True; if you need an open-ear design that keeps your ears free for traffic, conversation and long training days, choose TTQ Open Ear Headphones. Both carry an IPX7 waterproof rating, but they solve two completely different problems.
• C5G CSG True — biggest strength: a traditional in-ear fit with ergonomic ear tips, touch controls and a wireless charging case that adds up to 24 hours of case battery on top of 8 hours per charge.
• C5G CSG True — biggest trade-off: in-ear tips physically plug your ear canal, so you lose ambient awareness — the exact thing open-ear buyers are chasing.
• TTQ Open Ear Headphones — biggest strength: an earhook design that never enters your ear canal, plus dual-mic noise cancelling for calls and up to 36 hours total with the charging case.
• TTQ Open Ear Headphones — biggest trade-off: bulkier over-ear hooks and a heavier build (0.22 kg), and no charging case battery figure is split out the way the C5G breaks its numbers down.
• Who each pick is for: C5G CSG True for gym-goers, commuters and anyone who wants immersive, sealed-in sound; TTQ Open Ear Headphones for runners, cyclists and drivers who need to hear their surroundings.
The C5G CSG True is a conventional true-wireless sport earbud, and it leans hard into that identity. You get Bluetooth 5.3 for a stable connection at ranges up to roughly 49 feet, 8 hours of continuous playtime on a single charge, and about 1.5 hours to top the buds back up. The wireless charging case tucks another 24 hours into the equation, which is the kind of runway that covers a full week of workouts without hunting for a cable.
The fit is the real story here. Ergonomically shaped ear tips seat the bud inside your ear canal, and that seal is what produces the "crystal clear sound" character the spec sheet describes — deep bass and crisp treble depend on a sealed chamber. If you want music that feels like it's wrapped around your head, that physical design choice is doing the work. The in-ear placement also means the earbuds sit flush and stay put, and the black finish with a matching black case keeps things low-key.
Who should skip it? If you run on open roads, ride a bike near traffic, or you simply hate the feeling of something inside your ear canal, this isn't the design for you — no amount of tuning fixes a sealed ear. Also note the warranty description states no warranty, which is worth knowing before you commit. And if you're price-sensitive, check the current price on Amazon before deciding, since I don't quote figures here.
TTQ Open Ear Headphones: Who It's For
TTQ Open Ear Headphones take the opposite approach: the earbuds do not go into your ears at all. Instead, they hook over the ear and rest outside the canal, which is the whole point of the open-ear category. You hear your music and you hear the world at the same time — approaching cars, a training partner, a flight announcement, a kid calling from the next room.
The spec sheet backs up the sport focus. Bluetooth 5.3 provides the same fast, stable wireless connection as the C5G, and the IPX7 waterproof rating is explicitly pitched at workout use — running, cycling, driving, all the activities listed in the product title. Audio runs through a dynamic driver with a 20Hz–20,000Hz frequency range, which is a full-range claim covering the audible spectrum from deep lows to the top end.
Battery is where TTQ gets interesting. You get 8 hours for music and 9 hours for phone calls on the buds themselves, and up to 36 hours total with the charging case. That call-specific figure is unusual and tells you TTQ expects you to talk on these — which lines up with the dual-mic noise cancelling technology built in. The active noise cancellation is aimed at your voice during calls rather than sealing you off from the environment, which is consistent with an open-ear philosophy.
Physically, these are heavier and more present: 0.22 kg, an over-ear hook shape, and a thermoplastic elastomer (TPE) enclosure that's flexible and grippy against the ear. Controls are button-based with touch input as well, and there's no headphone jack — wireless only. TTQ also states a 2-year warranty, which is a longer coverage commitment than the C5G offers.
Skip these if you want thumping, isolated bass. An open design leaks sound in both directions, so a noisy gym or a loud bus will compete with your music. If you mainly want to disappear into an album, the C5G is the better tool. Also note the heavier build — if you like earbuds you forget are there, the C5G's light in-ear form factor wins.
• Best for sealed, immersive sound → C5G CSG True. In-ear tips create the seal that bass and treble clarity depend on.
• Best for situational awareness → TTQ Open Ear Headphones. The buds never enter the ear canal, so traffic and conversation stay audible.
• Best for total battery with the case → TTQ Open Ear Headphones. Up to 36 hours with the charging case versus 24 hours for the C5G case.
• Best for music-only battery per charge → C5G CSG True. 8 hours continuous, with a fast 1.5-hour recharge.
• Best for phone calls → TTQ Open Ear Headphones. Dual-mic noise cancelling and a 9-hour call rating make talking the priority.
• Best for range and connection stability → a tie. Both use Bluetooth 5.3; C5G specifies up to 49 feet.
• Best for long-term coverage → TTQ Open Ear Headphones. A stated 2-year warranty versus no warranty on the C5G.
• Best for light, pocketable everyday carry → C5G CSG True. In-ear buds plus a compact wireless charging case.
If I were buying for myself, I'd pick the TTQ Open Ear Headphones — but only because of how I'd use them. I run and ride near traffic, and the open-ear design plus dual-mic call handling and up to 36 hours with the case fits that life better than a sealed bud does. If your priority is rich, isolated sound for the gym or a commute, I'd take the C5G CSG True instead: the in-ear seal, 8-hour playtime, 1.5-hour recharge and 24-hour case make it the more immersive everyday earbud. Both are IPX7, so sweat and rain shouldn't decide it for you. Check the current price on Amazon for each and let your actual use case break the tie.
FAQ
are headphones waterproof
are headphones water resistant
Yes, and that's the accurate term for most sport audio gear. Water resistance is graded by IPX numbers, and IPX7 is one of the higher protection levels you'll see on earbuds. Both the C5G CSG True and the TTQ Open Ear Headphones are rated IPX7, so workouts and wet weather are covered.
They sound different rather than simply worse. The TTQ uses a dynamic driver covering 20Hz–20,000Hz, but because nothing seals your ear canal, bass feels lighter and outside noise mixes in. The C5G's in-ear tips create a seal, which is what produces its deeper, more enclosed sound.
For road running and cycling, I'd recommend the TTQ Open Ear Headphones — the earhook design keeps your ears open to traffic and the IPX7 rating handles sweat. The C5G CSG True is the stronger choice for indoor training where you want to block out the room and focus on the music.
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