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| Specification | Value |
| Model | A3213 / Life U2i |
| Form Factor | In-Ear / Bluetooth Neckband |
| Driver Size | 10 mm × 2 (Graphene / Bio-Cellulose Diaphragm) |
| Impedance | 16 Ω |
| Frequency Response | 20 Hz - 20 kHz |
| Audio Technology | Dual EQ Modes (Normal and BassUp™ Mode) |
| Microphone | Single Built-in Mic with AI-Enhanced Noise Reduction Algorithm |
| Bluetooth Version | Bluetooth 5.0 |
| Wireless Range | 10 m / 33 ft |
| Water Resistance Rating | IPX5 Waterproof & Sweatproof |
| Playtime | Up to 22 Hours (Varies by volume level and audio content) |
| Fast Charging Support | 10 Minutes Charge = 3 Hours Playtime |
| Charging Interface | USB Type-C |
| Charging Time | Approximately 2 Hours |
| Power Input | 5V ⎓ 0.5A |
| Control Type | Physical Tactile Buttons |
| Design Features | Lightweight Silicone Neckband, Ergonomic Earwings, Magnetic Earbuds |
| Weight | 27.22 g / 0.96 oz |
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