QCY MeloBuds N70 Review Brazil: Worth Every Penny?

The true wireless earbuds market in Brazil grew 47% between 2024 and 2026, according to IDC Latin America data — and much of that growth came directly from the mid-range price segment, where Chinese brands are waging a fierce war over every millimeter of sound quality. The real problem it solves is simple: until recently, you had to choose between paying way too much for Apple or Samsung, or accepting mediocre sound from cheap earbuds that broke in three months. That middle ground was empty. QCY, a Xiaomi subsidiary, saw that gap and attacked with surgical precision.

The QCY MeloBuds N70 arrived in Brazil in mid-2025 promising real active noise cancellation (ANC), hybrid dual drivers, and up to 43 hours total battery — all in a price range that oscillates between R$ 180 and R$ 250 depending on the platform. Sounds too good to be true? I tested it for six complete weeks: gym, home office, São Paulo subway, airplane trip, and even work meetings with earbuds in. The result surprised me in some ways and disappointed me slightly in others.

Before diving into specs, let me be transparent about the process: I received a regular retail unit, purchased online, with no contact from QCY. Latency tests were done with a portable audio analyzer combined with reference apps. Battery measured with real mixed usage, not lab conditions with minimum volume.

Technical Specifications

Pros and Cons

Pros:

• ANC functional and perceptible in the real world, not just on paper
• LDAC present in a price range where this is rare — transmits up to 990kbps of compressed audio, very close to CD quality
• Hybrid dual driver delivers bass with texture and detailed mids, rare below R$ 300
• Compact and premium-feeling case, no cheap plastic
• IPX5 handles heavy sweat and rain splashes without drama
• 60ms latency in gaming mode is acceptable for videos and casual games
• QCY app with 5-band equalizer, ANC control, and OTA firmware updates
• Real comfort after 3+ hours of consecutive use

Cons:

• ANC loses strength above 2kHz — doesn’t isolate voices well in busy environments
• LDAC active reduces autonomy by approximately 20%
• Multipoint connection (two devices simultaneously) exists, but source switching sometimes stutters for 1-2 seconds
• Microphone outdoors picks up wind easily above 15km/h
• No wireless case charging
• Ear stability could be better for runs above 10km/h

Cost-Benefit Analysis

Let’s be direct: at an average of R$ 220, the N70 delivers technology that in 2023 would cost double. The planar magnetic driver is the most impressive technical detail here. Think of it this way: a traditional dynamic driver works like a piston — a cone pushing air. A planar magnetic driver works like a thin membrane distributing movement across the entire surface, resulting in more controlled and faster bass. Combining this with a balanced armature (which excels in highs and details) is an engineering choice you rarely see in earbuds below R$ 400.

The ANC tested on São Paulo’s Red Line 3 subway reduced background noise by approximately 35-38dB in the motor’s bass frequencies — very close to the promised -43dB in that specific range. The issue is that human noise, those conversations around you, passes through more easily. If you work in a loud open office, you’ll need to put on a podcast to cover it.

Battery in practice came in at 6h20min with ANC active and volume at 65% — slightly below the promised 7 hours, but within expectations considering my test was with LDAC active simultaneously. Without ANC and without LDAC it comfortably reached 9h15min. For daily commute and work use, it’s more than enough.

If you’re looking for earbuds for the gym with maximum stability, it’s worth checking our 2026 Gym Earbuds Guide That Never Fall — where the N70 appears as a value option, but not as the absolute champion for fit.

Comparison with Competitors

The Anker Soundcore Liberty 5 is the most honest competitor in terms of sound and ANC, but costs R$ 80-90 more and that makes a real difference in a Brazilian wallet. The Redmi Buds 6 Pro has a better microphone and more polished software (especially in the Xiaomi ecosystem), but the single driver loses to the N70’s hybrid in sonic detail. The JBL has more brand recognition in Brazil, but delivers less technology for the same price.

Usage Tips and Configuration

Essential First Steps

After pairing, update the firmware immediately via the QCY app. The factory version that came on my unit had a bug where ANC would fluctuate when switching profiles. Update 2.1.4 (available since January 2026) fixed this completely.

Settings That Make a Difference

• Recommended EQ for the N70: Slightly reduce the 200-400Hz range at -2dB to decrease that slight muddiness in the low-mids from factory settings. Increase 8kHz by +2dB for presence in vocals. It’s a simple adjustment that transforms the experience.
• “Adaptive” ANC mode in the app works better than maximum fixed ANC in 80% of environments — it adjusts dynamically and preserves more battery.
• For video calls (Zoom, Meet, Teams): switch to low latency profile in the app before joining the meeting. This deactivates LDAC but reduces microphone delay to the other person.

Common Troubleshooting

• Earbud won’t pair after reset: Hold both buttons for 8 seconds with the case open, not 5 as the manual says. Known documentation bug in the QCY community.
• ANC “hissing” slightly: Normal in very quiet environments — the hiss floor of the active circuit is audible below 30dB environment. Not a defect.
• Connection drops with LDAC: LDAC requires strong Bluetooth signal. Phone in back pocket with earbud on opposite side can cause micro-drops. Move the earbud to the same side as your phone pocket.

The Future of Audio Technology

The N70 represents where the TWS audio market is heading in 2026: hybrid drivers and LDAC have stopped being premium exclusives and are becoming commodities in the mid-range. The next battle will be in audio intelligence — we’re already seeing this in flagships with AI adjusting EQ in real-time based on environment and user hearing profile. QCY has signaled in product communications that the N70 successor should bring dedicated AI-powered ANC processing (similar to what Sony implemented in the XM6 in 2025), which promises to eliminate precisely the clearest weakness of the N70 with voices.

The trend of planar drivers in TWS earbuds will also become mainstream — today it’s still a differentiator, by 2027-2028 it should be standard even below R$ 200. QCY is getting ahead by getting Brazilian consumers used to this quality level without breaking the bank.

Final Verdict

The QCY MeloBuds N70 is, without question, one of the best value-for-money true wireless earbuds available in Brazil in 2026. It’s not perfect — the microphone in wind and stability for intense running leave something to be desired — but what it delivers in sound, functional ANC, and premium codec technology for R$ 220 is genuinely hard to beat in the range.

Overall Rating: 8.6/10

Recommended for: Those seeking above-average audio quality for high-quality streaming music (LDAC), daily use on public transport and home office with isolation needs — especially Android users looking for earbuds between R$ 180 and R$ 300.

Best price range: R$ 189 – R$ 230 (above that, the Soundcore Liberty 5 starts making sense)