2025 SUMMER Gold Award EarFun Air Pro 4i Wireless Bluetooth 50dB Hybrid LDAC 3D 11mm Titanium Composite Diaphragm 40 Hours of AI Wireless IP55

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【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.

[Popular Model with Specialized Noise Cancellation] The EarFun Air Pro 4i, an evolution of the popular EarFun Air Pro 4, features Hybrid ANC and proprietary QuietSmart 3.0 ANC technology. It effectively blocks out ambient noise with up to 50dB of noise reduction. Adaptive ANC automatically adjusts noise reduction based on ambient conditions and fit for a natural, less oppressive sound. Furthermore, optimized filters for each frequency band and a feedback microphone positioned closer to the eardrum improve noise detection and cancellation accuracy. The improved vent design stabilizes air pressure balance for sustained sound isolation. This new standard in noise cancellation promises clear sound and a comfortable fit in any situation. Note: Noise cancellation effectiveness varies depending on the fit of the earphones. For maximum noise cancellation, ensure the earphones fit snugly in your ears. [11mm Titanium Diaphragm x LDAC for Hi-Res Audio Playback] The 11mm titanium-coated composite diaphragm driver delivers high rigidity and fast response, faithfully reproducing the original sound. It delivers a balanced sound with clear highs, rich mids, and deep bass. LDAC compatibility delivers high-resolution wireless sound quality and has earned Hi-Res certification from the Japan Audio Society. Furthermore, 3D sound technology delivers a three-dimensional sound experience with clear instrument and vocal positioning. Enabling "Theater Mode" puts you in the center of a live music venue. Note: LDAC is not available in Theater Mode or multipoint connections. [Clear Calls with 6 Microphones + AI Technology & IP55 Dustproof and Waterproof] Enjoy clear conversations during meetings and phone calls. The EarFun Air Pro 4i is equipped with six high-performance microphones that capture sound from all directions. AI technology detects environmental noise and effectively eliminates it, ensuring clear voice calls that ensure your voice is heard clearly. Additionally, the headphones are IPX55 dustproof and waterproof, so you can rest assured even if they get wet or sweat during exercise. Note: The charging case is not waterproof. [Up to 40 Hours of Continuous Playback, Multi-Point Connection, and Earbud Tracking Support] Enjoy up to 9.5 hours of music on the earbuds alone, or a total of 40 hours with the charging case. Supports fast charging, allowing you to get 2 hours of playback with just 10 minutes of charging, even on busy mornings. It also supports wireless charging, so you can easily charge by simply placing the earbuds down. Multi-point connection is also supported, allowing you to connect two devices simultaneously. Android devices can be quickly paired with Google Fast Pair. Additionally, the "Find Your Earbuds" feature in the EarFun Audio app lets you find your earbuds by playing a sound, and it also supports location tracking with Android's latest Find Hub tracker. Never worry about losing your earbuds again! [Ultimate sound quality and comfort achieved through shape and materials] The oval-shaped sound tube is larger and shorter, reducing sound dispersion and concentrating sound direction, resulting in high sound quality and excellent noise cancellation. The earpieces feature a dual-hardness design, with silicone of different hardness levels used for the earbuds and shafts. The shafts are made of a harder material, firmly securing the base and ensuring bass reaches the eardrum. The thinner earbuds ensure compatibility with various ear canals and excellent wearing comfort. In addition, the earpieces feature a unique design with a circular outer surface and an oval inner surface. In addition to structural innovations that take sound quality into consideration, these earpieces also provide a comfortable fit and a tight seal. [VGP 2025 SUMMER Gold Award Winner] EarFun Air Pro 4i Wireless Earbuds, Bluetooth 5.4, 50dB Hybrid ANC, Hi-Res LDAC Support, 3D Sound, 11mm Titanium Composite Diaphragm Drivers, 40 Hours of Playback, 6-Mic AI Calling, Wireless Charging, IP55 Dustproof and Waterproof, Multi-Point Connection [PSE Certified] (White)