---
product_id: 418002640
title: "LEFINIS SANRUNYUAN NB904EI9SKDMGJOT0R271"
brand: "sony"
price: "$37.03"
currency: USD
in_stock: false
reviews_count: 5
url: https://www.desertcart.us/products/418002640-lefinis-sanrunyuan-nb904ei9skdmgjot0r271
store_origin: US
region: United States of America
---

# 8Hz-22kHz wide frequency range Smart-Key app customization 3 sizes silicone earbuds for perfect fit LEFINIS SANRUNYUAN NB904EI9SKDMGJOT0R271

**Brand:** sony
**Price:** $37.03
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Elevate your everyday audio—custom comfort, crystal sound, zero compromises.

## Quick Answers

- **What is this?** LEFINIS SANRUNYUAN NB904EI9SKDMGJOT0R271 by sony
- **How much does it cost?** $37.03 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/418002640-lefinis-sanrunyuan-nb904ei9skdmgjot0r271)

## Best For

- sony enthusiasts

## Why This Product

- Trusted sony brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Comfort Meets Stability:** Hybrid silicone earbuds in three sizes ensure a secure, all-day comfortable fit tailored just for you.
- • **Immersive Sound Clarity:** Experience every beat with a broad 8Hz-22kHz frequency range that captures rich details in your music.
- • **Tangle-Free Convenience:** Enjoy hassle-free wired connectivity with a durable, tangle-resistant cable designed for your busy lifestyle.
- • **Universal Compatibility:** Seamlessly connect to any smartphone with a standard 3.5mm jack—plug in and play without limits.
- • **Personalized Control at Your Fingertips:** Use the Smart-Key app to customize mic button functions—switch effortlessly between volume and track control.

## Overview

The LEFINIS SANRUNYUAN NB904EI9SKDMGJOT0R271 wired in-ear headphones deliver a wide 8Hz-22kHz frequency range for detailed sound, customizable mic button controls via the Smart-Key app, and come with three sizes of hybrid silicone earbuds for a perfect fit. Lightweight and tangle-free, they connect through a universal 3.5mm jack, making them ideal for smartphone users seeking reliable, personalized audio on the go.

## Description

1

Review: Siempre son confiables y tienen buena calidad y sonido, por lo cual considero que por el bajo precio son un 10
Review: 10 倍の値段でボッタクリ 二度とかかわりたくない

## Features

- 8Hz-22kHz Frequency Range: The wideband frequency range – spanning 8Hz to 22kHz – helps to hear the detail in every track and stay in tune with all your music
- Smart-Key App: Simplify your life. Personalize your headset with this easy-to-use application. Configure your mic button to choose from Volume control or track control functions. Download the application from the play store and follow easy instructions to set functions from the mic button. This application is compatible with Andriod 4.0 and above
- Comfortable Silicone Earbuds: Enjoy comfort and stability with hybrid silicone earbuds, provided in 3 sizes for that perfect fit
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07C7CQPKP |
| Age range (description) | Adult |
| Best Sellers Rank | #88,896 in Electronics ( See Top 100 in Electronics ) #4,523 in In-Ear Headphones |
| Cable feature | Tangle Free |
| Compatible devices | Smartphones |
| Connectivity technology | Wired |
| Control method | App |
| Control type | Volume Control |
| Headphone jack | 3.5 mm Jack |
| Included components | Adapter |
| Item model number | MDR-EX14APB |
| Item weight | 3 Grams |
| Manufacturer | Sony |
| Material | Silicone |
| Model name | MDR-EX14AP |
| Noise control | None |
| Number of Items | 1 |
| Package type | Rigid |
| Product Dimensions | 11 x 15 x 7 cm; 3 g |
| Recommended uses for product | Calling |
| Specific uses for product | Music |
| Style | In-ear |
| Water resistance level | Not Water Resistant |
| Wireless communication technologies | Bluetooth |

## Product Details

- **Brand:** Sony
- **Colour:** Black
- **Ear placement:** In Ear
- **Form factor:** In Ear
- **Impedance:** 16 Ohms

## Images

![LEFINIS SANRUNYUAN NB904EI9SKDMGJOT0R271 - Image 1](https://m.media-amazon.com/images/I/51KDJS8eLWL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by V***. on 28 November 2025*

Siempre son confiables y tienen buena calidad y sonido, por lo cual considero que por el bajo precio son un 10

### ⭐ Review
*by ま***ん on 14 September 2023*

10 倍の値段でボッタクリ 二度とかかわりたくない

### ⭐⭐⭐⭐⭐ Review
*by J***A on 25 November 2025*

Muy buen producto por su precio. Buena construcción y durabilidad, tuve un modelo igual antes y me funcionó por más de 2 años.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-11*