Key Features
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Advanced Adaptive Active Noise Cancellation with 7-sensor system
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3× stronger noise reduction with real-time adjustment every 0.3 seconds
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Dual Driver System with ACAA acoustic architecture for balanced sound
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Powerful 10.5mm bass driver with titanium-coated tweeter
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Hi-Res Audio support with LDAC codec
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Six microphones with AI noise reduction and wind noise reduction
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Up to 10 hours playback on earbuds (ANC off)
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Up to 40 hours total battery life with charging case
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Ultra-fast charging: 5 minutes = up to 4 hours playback
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Wireless charging supported
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Smart touch controls on earbuds
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Charging case with touch display for ANC level control
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Low latency mode for gaming and video
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Bluetooth 5.3 with up to 20-meter range
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IPX5 water and sweat resistance
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Lightweight and ergonomic design for all-day comfort
Technical Specifications
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Product Name: Anker Soundcore Liberty 4 Pro NC TWS Earbuds
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Brand: Anker Soundcore
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Model: Liberty 4 Pro
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Model Number: A3954
Noise Cancellation
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7 sensors total (6 sound sensors + 1 barometric pressure sensor)
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3× stronger noise reduction
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Real-time adaptive adjustment every 0.3 seconds
Audio Drivers
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Dual Driver System with ACAA acoustic architecture
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10.5mm dynamic bass driver
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Titanium-coated tweeter
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Digital crossover for optimized sound separation
Audio Specifications
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Frequency Response: 20 Hz – 20 kHz+
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Sensitivity: 126 dB
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Impedance: 8Ω
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Total Harmonic Distortion (THD): 1%
Bluetooth & Codecs
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Bluetooth Version: 5.3
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Range: Up to 20 meters
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Audio Codecs: LDAC, AAC, SBC
Microphones
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6 microphones
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AI noise reduction
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Wind noise reduction algorithm
Battery & Charging
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Earbud Battery Capacity: 56mAh (each)
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Charging Case Battery: 580mAh
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Earbuds Playback: Up to 10 hours (ANC off)
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Total Playback with Case: Up to 40 hours
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Fast Charging: 5 minutes = 4 hours playback
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Charging Technology: 5C battery (2× faster charging)
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Charging Port: USB Type-C
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Wireless Charging: Supported
Design & Durability
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Water Resistance: IPX5
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Controls: Smart touch controls on earbuds
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Case Feature: Touch display for ANC adjustment
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Weight: Lightweight construction
Compatibility
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iOS and Android smartphones
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Tablets
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All Bluetooth-enabled devices
Product Description
The Soundcore Liberty 4 Pro NC True Wireless Earbuds deliver flagship-level performance with intelligent adaptive noise cancellation, dual-driver sound architecture, and premium connectivity features. Powered by a 7-sensor ANC system, the earbuds adjust noise reduction in real time every 0.3 seconds for a consistently immersive listening experience.
The ACAA dual-driver setup, combining a 10.5mm bass driver and titanium-coated tweeter, ensures deep bass, crisp highs, and precise audio separation. Support for LDAC Hi-Res Audio elevates sound quality for compatible devices.
With fast charging, wireless charging support, smart touch controls, and a unique case touch display, the Liberty 4 Pro is built for power users who want premium sound, convenience, and comfort in a sleek, lightweight design.
