The OnePlus Buds 4 in Zen Green impress with top active noise cancellation up to 49 dB, large 12.4 mm drivers and Bluetooth 5.4 for a stable connection. Designed with premium materials, they definitely showcase your listening experience, all-day comfort and seamless integration with Android & iOS.
2. General Information & Package Contents
- Product: OnePlus Buds 4
- MPN (Part Number): 5481100037
- EAN/UPC: 6921815628743
- Color: Zen Green
- Manufacturer: OnePlus (BBK Electronics)
The package (Greece) includes:
- Earbuds (L+R)
- 520 mAh charging case
- USB-C to USB-C cable (30 cm)
- Silicone Ear-tips (S/M/L)
- Quick Start Guide & Safety Manual
Wall charger not included, in accordance with EU Directive 2019/2022 on the reduction of e-waste.
3. Technical Specifications
3.1 Sound & ANC
- 12,4 mm dynamic drivers tuned by Dirac Opteo
- Active Noise Cancellation (ANC) up to 49 dB
- Transparency Mode for safe use outdoors
3.2 Connectivity & Controls
- Bluetooth 5.4 (SBC, AAC, LHDC)
- Multipoint: connect to two devices at the same time
- Touch controls: play/pause, volume, calls, ANC/Transparency toggle
- Smart HeyMelody app for custom EQ & Low-Lag Game Mode
3.3 Battery & Charging
- Earbuds (58 mAh): up to 10 hours (ANC off) | 8 hours (ANC on)
- Case (520 mAh): up to 36 hours (ANC off) | 30 hours (ANC on)
- Fast charging: 10′ → 2.5 hours of playback
- USB-C PD input (5 V/1.5 A)
3.4 Materials & Construction
- Rating IP54: dust & splashes
- Earbuds shell: ABS plastic with lead-free paint
- Ear-tips: medical-grade silicone
- Case: PC/ABS with matte finish
3.5 Dimensions & Weight
- Earbuds: 5.96×5.22×2.44 cm / 5 g
- Case: 6,0×5,5×2,5 cm / 44 g
3.6 SAR, NFC, SIM & Networks
- SAR: not applicable (wearable)
- NFC: not supported
- SIM/networking: no SIM card, Bluetooth only
4. Energy Consumption & Recommended Charger
- Recommended USB-C PD charger: 18 W for fast charging
- Standby consumption with 10 W charger: ~0.054 kWh/month
- Charge in an environment of 0-35 °C, avoid overheating or freezing
5. Year of circulation
- European launch: November 2023
6. Warranty, DOA & Returns
6.1 Consumers
- 24 months under EC 2/2013
- 14 days of withdrawal (without justification)
6.2 Professionals
- 12 months factory warranty
- DOA within 7 days: RMA request, return in original packaging
6.3 Return procedure
- DOA/warranty notification → RMA version
- Return with RMA number
- Repair or replacement without charge (DOA)
7. Reviews from Foreign Site
- PCMag: 4.5/5 - "Strong ANC, comfortable fit"
- The Verge: 9/10 - "Premium sound, excellent battery"
- SoundGuys: 7.5/10 - "Stable connection, dynamic bass"
8. Pros vs OnePlus Buds Z2 (2022)
- ANC 49 dB vs passive reduction on Z2
- Guide 12,4 mm vs 10,5 mm
- Bluetooth 5.4 vs 5.2
- Multipoint vs single-device
- Fast charging vs simple
- Autonomy up to 36 hours vs 38 hours (Z2)
9. Manufacturer Company Profile
OnePlus was founded in 2013 by Pete Lau and Carl Pei. It started with premium smartphones and in 2020 entered the audio market with Buds. Each generation improved: ANC, audio, connectivity. Today it is part of the BBK Electronics group, offering value-for-money products of high standards.
10. Customer Reviews
10.1 8 Positive
- "Total isolation thanks to the ANC!"
- "Spectacular sound quality with bass depth."
- "They do not tire, they are worn incessantly."
- "Unique autonomy - I don't think about charging every day."
- "Double connection seamlessly."
- "Fast charging - 10′ for hours of music."
- "Excellent calls with dual-mic ENC."
- "Premium feel, sturdy case."
10.2 2 Serious Negative
- "Lacks Qi wireless charging for convenience."
- "Price higher than competitors in the class."
11. Conclusion: Why Buy Them NOW & Common Goal
The OnePlus Buds 4 (Zen Green) are aimed at:
- Musical enthusiasts who want crystal clear sound & rich bass.
- Gamers with low-latency mode & stable connection.
- Telecommuting professionals who require clean calls.
With summer offers and limited stock, ensure your audio excellence today!
