Rinsmola Wireless Earbuds, 2025 Bluetooth 5.4 Headphone 3D Review
The Rinsmola G21Pro earbuds offer marathon battery life and gym-ready comfort, but make trade-offs on noise cancellation. Here's who should buy them.
The 30-Second Version
The Rinsmola G21Pro earbuds are a battery-life champion with gym-ready comfort. Their 98th percentile battery and 95th percentile comfort make them ideal for active users, though the sound and ANC are just good, not great. Worth it if you hate charging and love a light fit.
Overview
The Rinsmola G21Pro earbuds are a solid mid-range contender that punches above its weight in a few key areas. For $160, you get Bluetooth 5.4, a claimed 40-hour battery life, and a super-lightweight design that's built for movement.
They're clearly targeting the active user, with an IPX7 rating and a fit that scores in the 95th percentile for comfort in our database. If you're looking for a gym companion or a comfortable daily driver, these specs make a strong first impression.
Performance
The sound is good, landing in the 88th percentile. The 14.2mm drivers deliver a bass-forward profile that's fun for pop and hip-hop, though audiophiles might want more nuance in the highs. The ANC is decent, scoring 86th percentile, but don't expect Sony-level silence in a noisy commute. Where these buds truly shine is in their technical specs: battery life is in the 98th percentile, connectivity is rock-solid in the 96th, and the 3-gram weight makes them disappear in your ears.
Pros & Cons
Pros
- Battery life is exceptional, easily lasting multiple days. 98th
- Extremely lightweight and comfortable for all-day wear. 88th
- Bluetooth 5.4 provides a fast, stable connection. 87th
- IPX7 waterproofing makes them perfect for workouts. 85th
Cons
- Noise cancellation is good, not great, for the price.
- Sound profile favors bass, which can muddy complex tracks.
- The case has a cheap, plasticky feel.
- Lacks high-end features like multi-point pairing.
The Word on the Street
Specifications
Full Specifications
Design
| Form Factor | In-Ear |
| Wearing Style | Stick |
| Ear Tips | m |
| Weight | 0.0 kg / 0.0 lbs |
Audio
| Driver Type | Dynamic |
| Driver Size | 14.2 |
| Freq Max | 20000 |
| Impedance | 32 |
| Sensitivity | 108 |
| Codecs | Wireless Earbuds, 2025 Bluetooth 5.4 Headphone 3D Bass Hi-Fi Stereo Ear Buds, 4 ENC Noise Cancelling Mic, 40H 3g USB-C in-Ear Earphone, IP7 Waterproof Workout Sport for Laptop Pad Android iOS, Blue |
Noise Control
| ANC | Yes |
Connectivity
| Wireless | Yes |
| Bluetooth | 5.4 |
| Wired Connector | Bluetooth 5 |
Earbud Battery
| Battery Life | 40 |
| Charge Time | 1.5 |
| Charging | USB-C |
Case Battery
| Case Battery | 8 |
| Case Charging | USB-C |
| Capacity | 350 |
Microphone
| Microphone | Yes |
| NC Mic | Yes |
Features
| Touch Controls | Yes |
| App | iOS, Android |
| Water Resistance | Waterproof |
Value & Pricing
At $160, the value proposition is a bit of a mixed bag. You're paying a premium for the battery life and comfort, which are genuinely top-tier. But you're making compromises on ANC performance and build quality compared to established brands at this price. If your top priorities are marathon listening sessions and gym-ready durability, the money is well spent. If you crave the absolute best sound or noise cancellation, you might feel shortchanged.
vs Competition
Stacked up, the Rinsmola G21Pro sits in a weird spot. It destroys the Nothing Ear (a) on battery and comfort, but the Nothing buds often have better sound tuning. It's more workout-ready than the Sony WF-1000XM5, but the Sony's ANC is in a different league. Against the Google Pixel Buds Pro, you lose seamless Android integration and more refined ANC, but you gain significantly better battery and a lower profile fit. It's a classic trade-off: pick your two most important features and choose accordingly.
| Spec | Rinsmola Wireless Earbuds, 2025 Bluetooth 5.4 Headphone 3D | Technics Technics EAH-AZ80 Noise-Canceling True Wireless | Apple AirPods 4 Active Noise Cancellation Apple - AirPods 4 with Active Noise Cancellation - | Sony Sony WF-1000XM5 Noise-Canceling True Wireless | Bose Bose QuietComfort Ultra True Wireless | Sennheiser Sennheiser MOMENTUM True Wireless 4 |
|---|---|---|---|---|---|---|
| Form Factor | In-Ear | In-Ear | True Wireless | In-Ear | In-Ear | In-Ear |
| Driver Type | Dynamic | Dynamic | Dynamic | Sony WF-1000XM5 Noise-Canceling True Wireless In-Ear Headphones (Black) | Dynamic | Dynamic |
| Wireless | true | true | true | true | true | true |
| Active Noise Cancellation | true | true | true | true | true | true |
| Bluetooth Version | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.4 |
| Battery Life Hours | 40 | 7 | 5 | 6 | 6 | 7.5 |
| Case Battery Hours | 8 | 16 | 25 | 16 | 18 | 22.5 |
| Water Resistance | Waterproof | IPX4 | Water-Resistant | IPX4 | IPX4 | IP54 |
| Multipoint | - | true | true | true | true | - |
Common Questions
Q: How is the call quality?
It's very good. With four ENC mics, our data puts call clarity in the 95th percentile, so people will hear you clearly even in moderately noisy environments.
Q: Do they have wireless charging?
No, the charging case only supports USB-C. You're getting a long battery life, but you'll need a cable to top it up.
Q: Are they good for small ears?
Yes, the 3-gram weight and three included ear tip sizes make them a great option for smaller ears, which is a big reason for their high comfort score.
Who Should Skip This
Skip these if you're a frequent flyer or work in a very loud office. Their noise cancellation score (86th percentile) is decent, but for serious travel, you'll want the class-leading ANC from Sony or Bose. Also, avoid them if you need seamless switching between multiple devices, as they lack multi-point connectivity.
Verdict
Buy these if you're an active user or someone who hates charging gadgets. The combination of featherweight comfort, killer battery, and serious sweat resistance is hard to beat. They're a fantastic choice for gym rats, all-day work callers, or anyone who prioritizes comfort and endurance over audiophile-grade sound.