We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-22 · 7 min read · Independent comparison
If you want a complete, self-contained pair of true wireless earbuds with a charging case, a long playback window and a waterproof build, choose Xmenha TWS True; if you need replacement memory foam ear tips that upgrade the fit and noise isolation of your Sennheiser Momentum True Wireless 4, choose Luckvan Memory Foam Ear.
• Xmenha TWS True — biggest strength: A full earbuds system in one box — Bluetooth 5.3, dual-mic ambient noise cancellation, an IPX6 waterproof rating on both the buds and the case, and a smart LED case display that reads power from 1% to 100%.
• Xmenha TWS True — biggest trade-off: Playback runs about 4–5 hours per charge, so the long 45-hour figure only happens because you keep topping up from the case.
• Luckvan Memory Foam Ear — biggest strength: Slow-rebound polyurethane foam that fills the ear canal for a non-slip seal, which the maker says enhances bass and blocks outside noise.
• Luckvan Memory Foam Ear — biggest trade-off: It is an accessory, not a listening device. No drivers, no battery, no Bluetooth — and it only fits the Sennheiser Momentum True Wireless 4.
• Who each pick is for: Xmenha for someone buying their first (or spare) pair of budget true wireless earbuds; Luckvan for an existing Momentum TW4 owner who is unhappy with the stock silicone tips.
This is a complete true wireless kit, not a part. The Xmenha TWS True runs Bluetooth 5.3, which is the current mainstream version and gives you the stable connection and low-latency behaviour you want for phone calls and video. Range is quoted at about 10 metres in open space. Two microphones with ambient noise cancellation work on the call side of things, monitoring the room and pulling the background down so your voice comes through — the spec sheet frames this as the "as if you were face to face" scenario.
The physical design is aimed at a specific buyer. Xmenha describes these as built for small ear canals, and the buds are listed at roughly 0.3 ounces each, with the whole package at about 18 grams. If standard earbuds tend to ache or fall out after an hour, the compact rounded-tip shell and low weight are the reason to look here. The colour is black, the housing is plastic, and there is no headphone jack — it is wireless only, as you would expect.
Battery and control are where the value sits. Each bud carries a 45mAh cell and the case carries 800mAh, giving about 4–5 hours of playback per charge and up to 45 hours when you keep cycling through the case. A two-hour charge refills them. The case has a digital LED readout showing power from 1% to 100%, which sounds like a small thing until you have owned a case with three vague dots. There is also a pass-through trick: the case can top up your phone in an emergency. Controls are touch-based — play/pause, track skipping, volume, calls and Siri. The audio side is a dynamic driver covering 20Hz–20,000Hz, tuned with an emphasis on mid and high frequencies for voice clarity.
Buy the Xmenha if you want earbuds you can wear for running, gym work or in the rain (IPX6 on both buds and case), you like the idea of a case that doubles as a power bank, and you need something small enough for narrow ears. Skip it if you already own premium earbuds and only need tips, or if you want an app with EQ customisation — nothing in the spec sheet suggests one.
This is a consumable accessory, and it is honest about that. The Luckvan Memory Foam Ear is a three-pair set (small, medium, large) of replacement ear tips made from slow-rebound polyurethane foam, black, sold with a packaging box. It is designed specifically for the Sennheiser Momentum True Wireless 4 — the full name is Momentum 4 TWS — and the maker states it fits inside the original charging case, which matters because a fat aftermarket tip that blocks the case from closing is a daily annoyance.
What foam does that silicone does not is conform. The tips compress as you insert them and then slowly expand to fill the ear canal. That gives two things at once: grip, so the buds stay put during exercise, and a better seal, which is what actually creates passive noise isolation. Luckvan claims the seal enhances bass response and overall clarity, and that is consistent with how foam tips behave in general — a tighter seal means less low-frequency energy leaking away. The material is described as safe and non-toxic, and the anti-slip surface is aimed at people whose earbuds work loose mid-run.
There is a one-year warranty listed, and the tips are simple to install, remove and clean, which you will want to do regularly since foam collects earwax faster than silicone. The dimensions are about 4 x 3 x 0.4 inches for the package.
Buy the Luckvan if you own Momentum True Wireless 4 earbuds and the stock tips either hurt, slip out, or let in too much train and office noise. Skip it if you use any other brand of earbuds — this is not a universal fit — or if you dislike the slightly firmer, more "plugged" feeling foam gives compared with silicone.
• Best for a complete earbuds purchase → Xmenha TWS True. It is the actual earbuds, with drivers, mics, battery and case.
• Best for fixing fit and isolation on Momentum TW4 → Luckvan Memory Foam Ear. That is the only job it does, and it does it without blocking the charging case.
• Best for battery life → Xmenha TWS True. Roughly 4–5 hours per charge, up to 45 hours with the case, and a case that can also charge your phone.
• Best for sweat and rain → Xmenha TWS True. IPX6 on both the buds and the charging box.
• Best for narrow ear canals → Xmenha TWS True. Built for small ears, with each bud around 0.3 ounces.
• Best for passive noise blocking without electronics → Luckvan Memory Foam Ear. Foam that expands to your canal, no battery or software involved.
• Best for call clarity → Xmenha TWS True. Dual microphones with ambient noise cancellation and a tuning emphasis on voice frequencies.
• Best for long listening sessions in one position → Luckvan Memory Foam Ear. Slow-rebound foam is designed to stay comfortable for hours and to hold the bud in place.
These two are not really rivals, and pretending otherwise would be dishonest. One is a pair of earbuds; the other is a set of tips for a pair of earbuds you already own. If you are shopping for earbuds today, I would buy the Xmenha TWS True — it covers the basics well, adds IPX6, a 45-hour case and an emergency phone charge, and the small-ear fit is a real differentiator for anyone who finds standard buds uncomfortable. I would only point you to the Luckvan Memory Foam Ear if a Sennheiser Momentum True Wireless 4 is already sitting in your bag and the fit is the problem. In that case, the foam is the cheaper fix by far.
FAQ
how to connect tws earbuds
how to pair tws earbuds
Pairing depends on your phone's Bluetooth menu. The Xmenha runs Bluetooth 5.3 with a roughly 10-metre range and works with iPhone, Samsung, Android phones and iPad Pro. Turn on Bluetooth, open the case, and pick the earbuds from the device list. The Luckvan tips have no electronics, so there is nothing to pair.
how to reset tws earbuds
Neither data sheet describes a reset procedure, so I will not invent one. The Xmenha description covers automatic power-on when the case opens and automatic charging when the buds go back in. If a connection misbehaves, the usual starting point is to forget the device in your phone's Bluetooth settings and pair again — check the manufacturer's guidance for anything beyond that.
how to tws earbuds
If you mean "how do true wireless earbuds work," the short version: two independent buds link wirelessly to your phone, each with its own battery. The Xmenha pair gives about 4–5 hours per charge, tops up from an 800mAh case for up to 45 hours total, and adds touch controls for volume, calls and Siri. The Luckvan foam tips change none of that — they only change how the buds sit in your ears.
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See also: D & K Exclusives 6 vs Luckvan Memory Foam Ear, Ordtop Earbuds vs Xmenha Smallest Invisible Mini: IN Ear, Luckvan Memory Foam Tips vs SHANCHAHUA Reusable Sleep Noise-Canceling