50dB
QuietSmart™ 3.0 Adaptive ANC
Real-time noise cancellation analyzes surrounding ambient sound every 0.3 seconds. Filters up to 99.6% of ambient noise across a broad frequency band up to 4000Hz.
Professional Audio Engineering
Pure Hi-Res Sound Meets Intelligent Silence
The EarFun Air Pro 4i delivers high-definition wireless acoustics backed by QuietSmart™ 3.0 Adaptive Hybrid Active Noise Cancellation up to 50dB. Engineered for music lovers, mobile professionals, and international electronics buyers looking for high sell-through products.
QuietSmart™ 3.0 Hybrid ANC
Adaptive attenuation up to 50dB
Hi-Res LDAC Codec
Near-lossless 990kbps audio transfer
Bluetooth® 6.0 Connectivity
Ultra-stable link & low power usage
40 Hours Total Playtime
USB-C & Wireless Charging case
Certified by global safety standards: CE, FCC, RoHS, and TELEC compliant for seamless worldwide commercial distribution.
Key Hardware Features
Engineered to Exceed Industry Standards
Designed with custom acoustics, advanced noise algorithms, and long-lasting component build quality.
LDAC
Hi-Res Certified Studio Sound
Equipped with 11mm titanium-coated composite drivers and LDAC codec decoding, streaming up to 3x more data than standard Bluetooth codecs for true master-tape resolution.
6-MIC
AI Clear Call Microphone Array
Six customized feedforward and feedback microphones driven by AI environmental noise suppression isolate human voice clearly during call transport or business conferencing.
BT 6.0
Next-Gen Bluetooth® 6.0
Cutting-edge wireless architecture offers multipoint seamless device switching, lower power consumption, Google Fast Pair, and 50ms low-latency game mode.
40H
Extended Battery & Fast Charge
Delivers up to 9.5 hours of listening on a single charge (ANC off) and up to 40 hours total with the charging case. 10 minutes of fast charging yields 2 full hours of playback.
IP55
IP55 Water & Dust Resistance
Rugged structural enclosure safeguards internal acoustic hardware against sweat, dust intrusion, and splash rain, ideal for outdoor transit and athletic routines.
Inquire for Wholesale & Bulk Procurement
Explore volume pricing, ODM/OEM options, and distribution partnerships for your region.
Technical Overview
EarFun Air Pro 4i Specifications
Full technical metrics for commercial buyers and audio hardware evaluators.
| Parameter | Specification Metric |
|---|---|
| Product SKU | TW230B (Air Pro 4i Series) |
| Bluetooth Version & Codecs | Bluetooth® 6.0 | LDAC, AAC, SBC |
| Active Noise Cancellation | QuietSmart™ 3.0 Adaptive Hybrid ANC (Up to 50dB / 4000Hz) |
| Driver Hardware | 11mm Titanium-Coated Dynamic Drivers |
| Microphone System | 6-Microphone Array with AI Environmental Noise Cancellation |
| Playtime (ANC OFF) | Single charge: 9.5 Hours | Total with case: 40 Hours |
| Playtime (ANC ON) | Single charge: 6.5 Hours | Total with case: 27 Hours |
| Battery Capacity | Earbuds: 60mAh x 2 | Charging Case: 520mAh |
| Charging Duration | Earbuds: 1.5h | USB-C Case: 2h | Wireless Charging: 3.5h |
| Water & Dust Rating | IP55 Rated (Earbuds) |
| Special Features | 3D Theater Surround Sound, Multipoint Pairing, Google Fast Pair, Customized EQ via EarFun App |
| Total Weight | 51.3g (Earbuds + Charging Case) |
User Experience & Reviews
Verified Consumer & Expert Feedback
Consistently rated for acoustic resolution, ergonomic comfort, and value performance.
★★★★★
Impressive ANC and App Features
"The noise cancellation is excellent for commute and aircraft cabin noise. The 10-band app EQ gives tremendous tuning freedom, outperforming earbuds at double the price."
★★★★★
Usual EarFun High Acoustic Quality
"The case and earbuds feel solid and premium. Engaging the Theater Mode soundstage brings acoustic and live tracks to life with great clarity and natural dynamic bass."
★★★★★
Remarkable Clarity & Value
"Clean bass separation, zero fatigue on highs, and Bluetooth 6.0 stability. These slot right in as top-tier daily drivers with reliable wireless charging."
FAQ
Frequently Asked Questions
Essential queries regarding the EarFun Air Pro 4i for retail shoppers and commercial distribution partners.
What acoustic technologies are integrated into the EarFun Air Pro 4i?
The EarFun Air Pro 4i features QuietSmart™ 3.0 Adaptive Hybrid ANC up to 50dB, Hi-Res Audio certification with LDAC decoding, 11mm Titanium-coated drivers, 3D Theater surround sound, and Bluetooth 6.0 connectivity.
What is the battery endurance and fast-charging capability?
The earbuds provide up to 9.5 hours of playback with ANC off (6.5 hours with ANC on), totaling up to 40 hours with the charging case. Fast charging delivers 2 hours of playback from a quick 10-minute charge. The case supports both USB-C and Qi wireless chargers.
How does the 6-microphone AI call technology operate?
The 6-mic array uses adaptive feedback and feedforward microphones combined with an AI deep-learning noise suppression algorithm. It isolates vocal frequencies while active wind-reduction mesh reduces wind noise during outdoor use.
Is multipoint connection supported on the Air Pro 4i?
Yes. The EarFun Air Pro 4i supports multipoint pairing, allowing users to connect two Bluetooth devices simultaneously (such as a laptop and phone) and switch between audio calls and media streaming effortlessly.
Does EarFun provide B2B wholesale and OEM/ODM cooperation?
EarFun supports authorized regional distributors, retail store chains, and global e-commerce enterprise partners. Products carry complete international compliance certifications (CE, FCC, RoHS, TELEC) and come with full post-sale warranty support.