Defunc True Basic Wireless Earbuds Review
Open-fit semi-in-ear earbuds with a patented comfort design, Bluetooth 6.0, IPX4 water resistance and up to 22 hours of total playtime.
| Brand | Defunc |
|---|---|
| Type | True wireless earbuds |
| Fit | Patented MultiTip semi-in-ear open fit with ear wings |
| Bluetooth | Bluetooth 6.0 |
| Microphones | Quad microphones |
| Water resistance | IPX4 |
| Best for | Comfortable, aware all-day listening and calls |
Product Overview
The Defunc True Basic use a patented MultiTip semi-in-ear open-fit design, so they rest gently in the ear rather than plugging it. Add Bluetooth 6.0, IPX4 water resistance and a long total playtime. They suit anyone who finds sealed tips uncomfortable or likes to stay aware of their surroundings.
What does an open fit actually do? Because it does not seal the ear canal, it stays comfortable for long wear and safer for walking or running near traffic. In return, it trades away the deep bass and heavy noise isolation sealed tips give. Want the world blocked out on a commute? These are not that. Want light, all-day comfort with awareness? They are built for exactly that.
Score Breakdown
This verdict is based on the manufacturer's stated specifications, the current Amazon listing and its product images, the confirmed materials and design, real buyer ratings, and our research into the product category. Scores are consistent editorial judgments, not laboratory measurements, and we did not receive a paid sample.
Key Features
A patented MultiTip semi-in-ear design with soft ear wings rests gently for all-day wear.
The latest Bluetooth for faster pairing and a stable connection.
Shrugs off sweat and light rain during workouts and walks.
Up to 22 hours of total playtime with the charging case.
Four microphones for calls, plus a companion app with an AI chat assistant.
Design and Build Quality
Fit is the standout. Defunc's patented MultiTip semi-in-ear shape with soft silicone ear wings sits securely without pushing into the ear canal. That is the difference between earbuds you wear for an hour and ones you forget after a whole afternoon. A clean, minimal Scandinavian style, designed in Sweden, finishes them, and it looks a step above what you would expect.
On the technical side, Bluetooth 6.0 handles the connection, which the maker points to for faster pairing and a stable link. The buds carry an IPX4 rating, so they shrug off sweat and light rain during a workout or a walk. A set of quad microphones handles calls. A companion Defunc app adds control and an AI chat assistant for anyone who wants to tweak settings or use voice features.
Performance in Everyday Use
Comfort and stamina are the appeal. The open fit stays put through walks and workouts without the plugged-up feeling. Up to 22 hours of total playtime means they comfortably last a working week of commutes before the case needs charging. The quad-mic setup and Bluetooth 6.0 make them practical for calls as well as music, and the IPX4 rating covers the sweat and drizzle real life throws at them.
The trade-offs follow from the design. Sound leans toward clear, balanced everyday listening rather than the big, sealed-in bass some people chase. Because they let outside noise in, they are not the earbuds for a noisy train or a flight. Battery figures like the 22 hour total depend on volume and use, as they do with any earbuds. Taken as comfortable, aware, all-day buds with a genuinely nice fit, they make a strong case.
How It Performs: The Evidence
| Decision factor | What we found | Evidence and measurement | Score | Why it matters |
|---|---|---|---|---|
| Comfort | Wearable all day | Manufacturer: patented MultiTip semi-in-ear open-fit design with ear wings | 9.0 | Comfort decides whether you actually keep them in |
| Connection | Fast, stable pairing | Listing: Bluetooth 6.0 for faster pairing and a stable link | 8.5 | Dropouts ruin earbuds more than anything else |
| Durability | Handles sweat and rain | Listing: IPX4 water resistance | 8.5 | Workout buds must survive sweat and light rain |
| Battery | Lasts the week | Listing: up to 22 hours total playtime | 8.5 | Total playtime decides how often you charge the case |
| Calls | Clear enough for calls | Listing: quad microphones | 8.0 | Most people use earbuds for calls as much as music |
Who Should Buy It
- All-day comfortable wear
- Walking and running with awareness
- Calls and everyday music
- People who dislike sealed tips
- Sweat and light-rain use
- Anyone wanting sealed-in bass or noise blocking on a commute
- Open fit means lighter bass
- Little noise isolation, not for noisy commutes
- Battery figures vary with volume and use
Full Specifications
How It Compares
| Feature | Defunc | Typical budget | Premium option |
|---|---|---|---|
| Fit | Open, semi-in-ear | Sealed in-ear | Over-ear |
| Noise isolation | Low, aware | High | High |
| Bass | Light, balanced | Deeper | Deeper |
| Water resistance | IPX4 | Varies | Varies |
| Awareness | High, safer outdoors | Low | Low |
Alternatives Worth a Look
A genuinely comfortable, well-designed pair for anyone who dislikes sealed in-ear tips or wants to stay aware of their surroundings. The patented open fit, Bluetooth 6.0, IPX4 rating and long total battery make them an easy everyday choice, as long as you accept the open-fit trade-off of lighter bass and less noise isolation. On comfort and all-day use, they are a strong pick.
Frequently Asked Questions
Do they block out noise?
No. The open-fit design deliberately lets outside sound in for awareness and comfort, so they are not for blocking noise on a commute.
Are they comfortable for long wear?
Yes. The patented semi-in-ear shape with ear wings rests gently rather than plugging the ear canal, which suits all-day use.
Can I use them for workouts?
Yes. They carry an IPX4 rating, so they handle sweat and light rain.
How long does the battery last?
Up to 22 hours of total playtime with the charging case, though real life varies with volume and use.
Is there an app?
Yes, the Defunc companion app adds control and an AI chat assistant, and the buds have quad microphones for calls.
This review is based on the manufacturer's stated specifications, the current Amazon listing and its images, and our research into wireless earbuds as a category. Figures such as Bluetooth 6.0, IPX4 and up to 22 hours of total playtime are as stated by the manufacturer, and real battery life varies with volume and use. Scores are editorial judgments, not laboratory audio measurements. Confirm the current details on the live listing before buying.