Jxrev J51
Equipped with a latest-generation Bluetooth 5.4 chip, 13mm dynamic drivers, and an ultra-light 3g build, these earbuds deliver a stable connection and deep bass in an IP7 waterproof body. The 32-hour total battery life, fast USB-C charging, and pocket-sized case make them a highly portable daily companion. They suit budget-conscious users and gym-goers who need durable, lightweight earbuds for music and calls.
About This Earbuds
Equipped with a latest-generation Bluetooth 5.4 chip, 13mm dynamic drivers, and an ultra-light 3g build, these earbuds deliver a stable connection and deep bass in an IP7 waterproof body. The 32-hour total battery life, fast USB-C charging, and pocket-sized case make them a highly portable daily companion. They suit budget-conscious users and gym-goers who need durable, lightweight earbuds for music and calls.
- Form factor in-ear
- Driver type dynamic
- Wireless
- Active noise cancellation
- Bluetooth version 5.4
- Battery life hours 7
- Case battery hours 32
- Water resistance IP7
The 30-Second Version
The Jxrev J51 nails comfort and battery for very little money, but the case is maddening and the ANC doesn't work. Buy them for casual listening if you can snag them under $30, just know you'll be fighting the case daily.
Overview
The Jxrev J51 is one of those rare budget finds that gets a few things spectacularly right and a few things spectacularly wrong. It's tiny, it's bright yellow, and it's shockingly comfortable, especially if you've got smaller ears. You'll get a full workday of battery and decent-enough sound for the price. But the very first thing you'll do is fight the case, and that tussle sets the tone.
Performance
The 13mm drivers push a warm, bass-heavy sound that sits well above average for the price bracket. Battery life is strong, with 7 hours on the buds and 32 total in the case, and USB-C fast charging tops things off quick. The ANC is listed, but don't get excited. Owners consistently report it's mostly marketing, doing little to hush the outside world. Bluetooth 5.4 pairs fast, though you might get the occasional dropout. Call quality is rough; the mics pick up too much background noise, so don't plan conference calls on these. Build quality is where things dip hard, cheap plastic and a case you'll want to throw across the room when you can't pry the buds out.
Pros & Cons
Pros
- Incredibly comfortable, especially for smaller ears 93th
- Battery lasts nearly a full workday and the case adds plenty more 89th
- Bluetooth 5.4 pairs instantly and stays mostly stable 89th
- Sound is warm and bassy, surprisingly good for the price 81th
Cons
- Nearly impossible to pry out of the charging case at first 33th
- ANC exists on paper but doesn't actually reduce much noise
- Microphone is weak for calls, often picks up background noise
- Hard plastic build feels cheap and some may find them loose during exercise
The Word on the Street
Specifications
Full Specifications
Design
| Form Factor | in-ear |
| Wearing Style | true wireless |
| Ear Tips | S |
| Weight | 0.0 kg / 0.1 lbs |
Audio
| Driver Type | dynamic |
| Driver Size | 13 |
| Impedance | 40 |
| Hi-Res Audio | Yes |
| Codecs | Lightweight, Noise Cancellation, Sports & Exercise, Universal Phone Control, Water Resistant |
Noise Control
| ANC | Yes |
| ANC Type | adaptive |
Connectivity
| Wireless | Yes |
| Bluetooth | 5.4 |
| Wired Connector | Bluetooth |
Earbud Battery
| Battery Life | 7 |
| Charge Time | 1 |
| Fast Charging | USB-C fast charging |
| Charging | USB-C |
Case Battery
| Case Battery | 32 |
| Case Charging | USB-C |
Microphone
| Microphone | Yes |
| Mic Count | 2 |
| NC Mic | Yes |
Features
| Voice Assistant | voice assistant |
| Touch Controls | Yes |
| Water Resistance | IP7 |
Value & Pricing
At under $30, you're getting a lot of comfort and battery for not much cash. The sound quality is genuinely enjoyable for casual listening, and that tiny case slips into any pocket. But you have to accept the big annoyances: a frustrating case design, fake-feeling ANC, and a build that won't survive rough handling. If you can live with those, it's a solid value, just don't expect miracles.
Price History
vs Competition
Against the JLab GO POP ANC, the J51 wins on comfort but loses on build and touch control reliability. The Soundcore P31i has more honest ANC and better call quality. If fitness is your thing, the JBL Endurance Race 2 fits more securely and handles sweat better, even if it costs a bit more. The EarFun Air Pro 4i outclasses the J51 in microphone clarity, but these are often pricier. For the absolute lowest spend, the J51 holds its own, but spending another $10-20 sidesteps most of its flaws.
| Spec | Jxrev J51 | Soundcore Soundcore P31i | JBL Endurance Race Endurance Race 2 | EarFun Air Pro Air Pro 4i | TOZO Crystal Pods Crystal Pods | Baseus Bass Bass BP1 Pro |
|---|---|---|---|---|---|---|
| Form Factor | in-ear | in-ear | in-ear | in-ear | in-ear | in-ear |
| Driver Type | dynamic | Dynamic Driver | Dynamic | dynamic | dynamic | dynamic |
| Wireless | true | true | true | true | true | true |
| Active Noise Cancellation | true | true | true | true | true | true |
| Bluetooth Version | 5.4 | 6.1 | 5.3 | 5.4 | 5.4 | 6.0 |
| Battery Life Hours | 7 | 10 | 12 | 9.5 | 7 | 12 |
| Case Battery Hours | 32 | 50 | 36 | 40 | 70 | 55 |
| Water Resistance | IP7 | IP55 | IP68 | IP55 | IPX5 | IP55 |
| Multipoint | - | - | true | true | true | true |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| Jxrev J51 | 88.5 | 80.5 | 33.4 | 76.9 | 80.2 | 93.4 | 80.7 | 89.3 |
| Soundcore Soundcore P31i Compare | 88.5 | 96.9 | 91.4 | 96.8 | 94 | 70.9 | 84.8 | 89.3 |
| JBL Endurance Race Endurance Race 2 Compare | 88.5 | 90.4 | 98.8 | 46.7 | 88.7 | 93.4 | 96.4 | 69.2 |
| EarFun Air Pro Air Pro 4i Compare | 88.5 | 96.9 | 91.4 | 87.8 | 86.5 | 70.9 | 92.5 | 96.7 |
| TOZO Crystal Pods Crystal Pods Compare | 91.9 | 90.4 | 91.4 | 77.4 | 96.6 | 70.9 | 92.5 | 99.3 |
| Baseus Bass Bass BP1 Pro Compare | 96.6 | 96.9 | 91.4 | 87.3 | 96 | 70.9 | 98.5 | 69.2 |
Common Questions
Q: Does the active noise cancellation actually work?
Not really. Despite being listed as ANC, user feedback and our testing show it's more like very light passive isolation. Don't count on it to block out much background hum.
Q: Are these earbuds good for running and gym workouts?
They have an IP7 waterproof rating, which is great for sweat, but the fit can be insecure for some during movement. If they stay in your ears, they'll survive, but a more secure sports design might work better.
Q: Can I use them for phone calls?
We wouldn't recommend it. The microphone quality is below average and tends to pick up a lot of environmental noise, so your voice may sound distant to callers.
Who Should Skip This
If you need clear call quality or actual noise cancellation, skip these. Runners and gym-goers with larger ears might find them slipping out, and anyone who values build quality will be disappointed by the cheap plastic and painful case. Spend a touch more for fewer headaches.
Verdict
Grab these if you want dirt-cheap earbuds for podcasts and background music and don't mind wrestling the case open every time. The comfort is genuinely top-tier, but the rough edges make them a tough sell for anyone needing reliable calls or real ANC.