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Features:
1. The E4 wireless earphones specially design for sports enthusiasts who like jogging and hiking.
2. Flexible neckband which can be adjusted upon the size of wearer's neck;
3. The detachable ear-wings made with selected skin-friendly silicone material, allowing the sports enthusiasts to fully enjoy the pleasure of sports and music.
4. Using the wireless V5.0 solution, equipped with the 10mm driver unit to create deep bass as well as soft vocal. Lightweight skin-friendly material, 7h playtime.
5. IPX4 waterproof and sweat-proof, fit for long time wearing. Whether it is sunny or rainy, in casual time or sports time, you could enjoy music at your own will.
Specifications:
| General Specification | |
| Brand | Nillkin |
| Model | E4 |
| Color | Black, Red |
| Wearing Type | In-ear |
| Material | ABS+ PC |
| Net Weight (g) | 33.5g |
| Technical Parameters | |
| Microphone | Yes |
| Wired Control | Support |
| bluetooth Version | V5.0 |
| Transmission Distance | 10m |
| Dynamic Driver | 10mm |
| Impedance | 32Ω |
| Frequency Response | 20-20kHz |
| Battery Capacity | 105mAh, 3.7V |
| Charging Time (h) | 2h |
| Working Time (h) | 7h |
| Standby Time (h) | 120h |
| Waterproof | IPX4 |
Package Included:
 |
1* Nillkin E4 bluetooth 5.0 Neckband Earphone |
| 1* USB Charging Cable | |
| 3 pairs of Eartips | |
| 1* English Manual |
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