Finding the right pair of wireless earbuds can feel overwhelming—especially when you want strong sound, long battery life, clear calling, and durability, all without spending a fortune. The 3r Earbuds for Oppo A3 4G aim to tick all those boxes. With 12.4mm dynamic drivers, an impressive up to 58 hours of total playback, a 4-mic design for clear calls, and a tough IP55 rating, these TWS earbuds are clearly built for daily use, workouts, travel, and long listening sessions. But how do they actually perform in real life? Let’s break it all down.
Design and Comfort: Built for Daily Use
The first thing you’ll notice about the 3r Earbuds is their practical, no-nonsense design. They strike a good balance between sporty and stylish, making them suitable for both casual wear and active use. The earbuds are lightweight and ergonomically shaped, allowing them to sit comfortably in the ears for long periods without causing fatigue.
The charging case feels solid and compact enough to slip into a pocket or backpack. It also offers good protection for the earbuds while on the go. The matte finish helps resist fingerprints and minor scratches, which is a nice touch at this price point.
Comfort highlights:
- Secure in-ear fit
- Lightweight design
- Suitable for extended listening sessions
- Stable enough for workouts and commuting
Whether you’re using them for online classes, office calls, or gym sessions, comfort won’t be an issue.
Sound Quality: Big Drivers, Bigger Impact
Sound is where the 12.4mm dynamic drivers really shine. Compared to smaller drivers found in many budget earbuds, these deliver a more powerful and immersive audio experience.
Audio performance breakdown:
- Bass: Deep and punchy, great for EDM, hip-hop, and Bollywood tracks
- Mids: Clear and well-balanced, making vocals sound natural
- Highs: Crisp without being sharp or tiring
The soundstage feels wide for true wireless earbuds, giving music a fuller and more engaging feel. Whether you’re watching videos, gaming casually, or enjoying playlists, the audio output feels rich and satisfying.
Battery Life: A True Marathon Performer
One of the biggest selling points of the 3r Earbuds is their outstanding battery life. With up to 58 hours of total playback including the charging case, these earbuds are built for users who hate frequent charging.
Battery performance details:
- Multiple days of use on a single full charge
- Ideal for travel, long workdays, and binge listening
- Quick top-ups through the charging case
For students, professionals, or travelers, this kind of battery backup is a major advantage. You can confidently leave home without worrying about running out of power.
4-Mic Design: Clear Calls Anywhere
Call quality is often where budget earbuds struggle—but not here. The 4-mic setup (two microphones per earbud) ensures clearer voice transmission during calls and virtual meetings.
The microphones do a good job of reducing background noise, making your voice sound louder and clearer even in moderately noisy environments like streets, offices, or cafes.
Call quality benefits:
- Improved voice clarity
- Reduced background noise
- Better performance during video calls and gaming chats
For people who attend frequent online meetings or take calls on the go, this is a big plus.
IP55 Rating: Built to Handle Sweat and Dust
With an IP55 rating, the 3r Earbuds are designed to withstand dust, sweat, and light splashes of water. This makes them an excellent choice for:
- Gym workouts
- Outdoor walks and runs
- Daily commuting
You don’t need to worry about sweat damaging the earbuds or light rain ruining your listening session. This level of protection is impressive in this segment.
Connectivity and Controls
The earbuds offer fast and stable Bluetooth connectivity, especially when paired with the Oppo A3 4G. Once paired, they connect automatically whenever you take them out of the case.
Touch controls allow you to:
- Play/pause music
- Answer or reject calls
- Activate voice assistant
The touch response is smooth and accurate, reducing accidental taps.
Compatibility and Everyday Use
While optimized for the Oppo A3 4G, these earbuds work seamlessly with:
- Android smartphones
- Tablets
- Laptops
They’re versatile enough for music, movies, calls, and casual gaming, making them a great all-rounder for everyday use.
Pros and Cons
Pros
- Powerful 12.4mm drivers with rich sound
- Massive 58-hour total playback
- 4-mic design for clear calling
- IP55 dust and water resistance
- Comfortable and secure fit
Cons
- No active noise cancellation
- Charging case slightly larger due to big battery
- Touch controls may take time to master
Who Should Buy the 3r Earbuds for Oppo A3 4G?
These earbuds are ideal for:
- Users who prioritize long battery life
- Students and professionals attending online calls
- Fitness enthusiasts needing sweat resistance
- Budget buyers wanting strong sound performance
If you want reliable, long-lasting earbuds with great sound and call quality, these are a solid choice.
Final Verdict
The 3r Earbuds for Oppo A3 4G deliver excellent value with their powerful drivers, marathon battery life, clear call quality, and rugged IP55 build. They’re designed for real-world use—long days, active lifestyles, and constant connectivity.
If you’re looking for affordable TWS earbuds that don’t compromise on essentials, these earbuds deserve serious consideration.
FAQs
1. Do these earbuds support fast charging?
They offer quick charging through the case, ideal for short top-ups.
2. Are they suitable for workouts?
Yes, the IP55 rating makes them sweat and dust resistant.
3. Can I use them for online meetings?
Absolutely. The 4-mic setup ensures clear voice quality.
4. Do they work with phones other than Oppo?
Yes, they’re compatible with most Android devices and laptops.
5. Do they have active noise cancellation?
No, they rely on passive noise isolation instead.


