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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a wired USB-C connection with dual drivers and a metal build for calls and music on modern devices, choose BACKWIN USB C; if you need true wireless freedom with a charging case, a huge playtime figure and IP7 protection for workouts, choose zakotu Earbuds. Both are built around deep bass, but they get there in completely different ways, and that difference is what should decide it for you.
• BACKWIN USB C — biggest strength: a dual-driver setup (10 mm driver plus a balanced armature driver) plugged straight into a USB-C port, so there is no battery to charge, no pairing, and no wireless codec in the chain.
• BACKWIN USB C — biggest trade-off: it is wired. You are tethered to your phone, tablet or laptop, and older devices with Lightning or a 3.5 mm jack simply are not part of the equation.
• zakotu Earbuds — biggest strength: Bluetooth 5.4 with a 15-metre range, 45 hours total playtime with the case, IP7 nano-coating and a 3-gram-per-bud design that stays put through sweat.
• zakotu Earbuds — biggest trade-off: everything runs through a battery and a Bluetooth link, so you have to charge, and you are relying on the case to hit that headline playtime.
• Who each is for: BACKWIN USB C for anyone who wants zero fuss and the most direct signal path; zakotu Earbuds for anyone who moves around, works out, or hates cables.
The BACKWIN USB C is the pick for people who want deep bass without a battery in the equation. Inside each earpiece there is a 10 mm driver paired with a balanced armature driver — that two-driver arrangement is the interesting part. A dynamic driver like the 10 mm unit is what usually moves the air for low-end punch, while a balanced armature is typically used for detail and clarity. Putting both in one in-ear housing is a design choice aimed at giving you strong bass and clean highs rather than one at the expense of the other. The rated frequency range covers the standard 20 Hz to 20,000 Hz spread, with 32 ohm impedance and 96 dB sensitivity, which are reasonable numbers for driving straight off a phone or laptop USB-C port without a separate amp.
The feature that separates it from a plain pair of wired buds is the Environmental Noise Cancellation paired with a noise-cancelling mic. In practice, that is about calls: the earbuds work to filter out the rumble of a subway platform or the chatter of an open-plan office so the person on the other end hears your voice and not your surroundings. The in-line control panel with push buttons handles volume, call management and playback, so you are not digging your phone out of a pocket. You also get ear tips in three sizes (S/M/L) in the box and a one-year warranty, and the housing is metal in a black finish, which tends to feel more substantial than the all-plastic shells common at this level.
zakotu Earbuds: Who It's For
The zakotu Earbuds are the opposite philosophy: cut the cable and let the case carry the load. Bluetooth 5.4 handles the connection, with support for the usual audio profiles (HID, HFP, A2DP, AVRCP), a 15-metre range and a rated 55 ms latency — low enough that lip-sync on video is not going to be a constant irritation. Pairing is the standard modern routine: connect once, and the buds reconnect to the last device automatically when you open the case. They also run in either binaural mode or mono mode, so you can use a single earbud for a call while the other stays in the case.
On the sound side, the design uses 13 mm double-layer diaphragm dynamic drivers, which is a large driver for an in-ear bud. That size is exactly what you would expect to see in a product chasing deep bass, and the description notes the bass rolls naturally into the mids and highs rather than sitting in a separate lump. There are four ENC microphones for calls, and the touch controls cover play/pause, track skipping, volume, calls and voice assistance from the top surface of each bud.
The practical numbers are where the zakotu pulls ahead for active users. Rated battery life is 8 hours per charge with a 1.5-hour charge time, and the case adds roughly five more charges for a total around 45 hours. A quick 10-minute top-up is rated to give about 2 hours of playback. Each bud weighs just 3 grams, ships with three sizes of silicone tips, and the internals carry IP7 nano-coating, which is aimed squarely at sweat and light rain. A separate LED display on the case and buds shows charge levels.
Who should buy it? Runners, gym-goers, commuters who hate cables, and anyone who wants one pair to bounce between an Android phone and an iPhone. Who should skip it? If you want the most direct possible signal path, or you dislike managing one more battery in your life, the wired option is the better fit. The pink gold colourway is also a specific look — if you want something understated, that matters.
• Best for deep bass from a big driver → zakotu Earbuds. A 13 mm double-layer diaphragm is physically larger than the 10 mm unit in the BACKWIN, and larger diaphragms generally move more air for low-end weight.
• Best for bass plus detail → BACKWIN USB C. The dual-driver setup adds a balanced armature alongside the dynamic driver, which is a detail-and-clarity play rather than a pure bass play.
• Best for battery life → zakotu Earbuds. Around 45 hours total with the case, versus a wired pair that never needs charging at all but also never leaves your device.
• Best for zero-charge, zero-pairing simplicity → BACKWIN USB C. Plug it in and it works. Nothing to top up, nothing to reconnect.
• Best for workouts and sweat → zakotu Earbuds. IP7 nano-coating, 3-gram buds and no cable snagging on your arm.
• Best for calls in loud places → a genuine toss-up. The BACKWIN leans on ENC and a noise-cancelling mic; the zakotu uses four ENC mics. Both are aimed at the same problem.
• Best for travel and commuting → zakotu Earbuds. No cable to catch on a bag strap or a seat arm.
• Best for desk and studio use → BACKWIN USB C. A wired USB-C connection to a laptop, no latency and no charging interruptions.
If I had to pick one, I would buy the zakotu Earbuds. The combination of a 13 mm bass-focused driver, roughly 45 hours of total playtime, IP7 protection and 3-gram buds covers more of my day — desk, commute and workout — than a wired pair can. The BACKWIN USB C is the better tool for a specific job: calls in noisy places and cable-free-of-charging listening on a USB-C laptop, with a dual-driver design that should sound more refined up top. But as a single pair of deep-bass headphones for most people, the wireless option is the more flexible purchase. Check the current price on Amazon for both before you commit, since that is the one variable that can flip this decision.
what are headphones with good bass
Headphones with good bass are ones whose drivers are designed to move enough air to produce a full, weighty low end. In this comparison, that means the zakotu's 13 mm double-layer diaphragm drivers or the BACKWIN's 10 mm dynamic driver working alongside a balanced armature. Look at driver size, driver type and the frequency range quoted in the specs.
what headphones have deep bass
Deep bass comes down to driver design rather than branding. The zakotu Earbuds use 13 mm double-layer diaphragm dynamic drivers, which is a large driver for an in-ear model and the main reason the low end is described as strong. The BACKWIN USB C uses a 10 mm driver plus a balanced armature, covering a 20 Hz to 20,000 Hz range.
what is bass in headphones
Bass is the low-frequency part of what you hear — roughly the bottom end of the 20 Hz to 20,000 Hz range both of these products cover. It is what you feel in a kick drum or a bassline. How much of it you get depends on the driver size, the driver type and how well the ear tip seals your ear canal.
what are earbuds with good bass
Earbuds with good bass typically use a larger dynamic driver and a tip that creates a proper seal. The zakotu Earbuds ship with three sizes of silicone cushions specifically to get that seal, and the BACKWIN USB C includes S/M/L tips for the same reason. A poor seal is the fastest way to lose low end, whatever the spec sheet says.
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