Anker Soundcore Liberty 4 NC Wireless Earbuds (Model A3947H11)
Anker Soundcore Liberty 4 NC Wireless Earbuds (Model A3947H11)
General & Build
| Specification | Details |
|---|---|
| Model Number | A3947H11 (Liberty 4 NC) |
| Driver | 11 mm custom-tuned dynamic drivers |
| Water Resistance | IPX4 (sweat and splash resistant) |
| Weight | Approximately 5.2 g per earbud |
Audio & Noise Cancellation
| Specification | Details |
|---|---|
| Active Noise Cancelling | Adaptive ANC 2.0 (adapts to ears and environment; up to 98.5% reduction) |
| Audio Codec | Hi‑Res Wireless with LDAC support |
| EQ Customization | HearID 2.0 with fully adjustable EQ and 22 presets |
Connectivity & Controls
| Specification | Details |
|---|---|
| Bluetooth | Version 5.3 with multipoint support |
| Controls | Touch controls, customizable via app |
| Call Quality | Six microphones with AI-enhanced noise reduction for clear voice |
Battery & Charging
| Specification | Details |
|---|---|
| Battery Life (Earbuds) | Up to 10 hours (ANC off); ~8 hours with ANC on |
| Total Battery Life (With Case) | Up to 50 hours |
| Fast Charging | 10 minutes charges for ~4 hours playback |
| Wireless Charging | Supported (Qi) |
Performance & Specifications
| Specification | Details |
|---|---|
| Frequency Response | 20 Hz – 40 kHz |
| Impedance | 10 Ω |
| Bluetooth Range | ~10 m (33 ft) |
| Battery Case Weight | Approx. 1.75 oz (empty); 2.14 oz with earbuds |
