---
product_id: 507895884
title: "Single Bluetooth Wireless Earbud, Mini Invisible in-Ear Wireless Bluetooth Headphone 12 Hours Super Long Battery Life Suitable for Sports Work and Sleep - Black"
brand: "sysfun"
price: "£14.37"
currency: GBP
in_stock: true
category: "Sysfun"
url: https://www.desertcart.co.uk/products/507895884-single-bluetooth-wireless-earbud-mini-invisible-in-ear-wireless-bluetooth
store_origin: GB
region: United Kingdom
---

# 12h battery life Bluetooth 4.0, 10m range Mini invisible in-ear design Single Bluetooth Wireless Earbud, Mini Invisible in-Ear Wireless Bluetooth Headphone 12 Hours Super Long Battery Life Suitable for Sports Work and Sleep - Black

**Brand:** sysfun
**Price:** £14.37
**Availability:** ✅ In Stock

## Summary

> 🎧 Stay connected, stay invisible — power your day with SYSFUN X7

## Quick Answers

- **What is this?** Single Bluetooth Wireless Earbud, Mini Invisible in-Ear Wireless Bluetooth Headphone 12 Hours Super Long Battery Life Suitable for Sports Work and Sleep - Black by sysfun
- **How much does it cost?** £14.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/507895884-single-bluetooth-wireless-earbud-mini-invisible-in-ear-wireless-bluetooth)

## Best For

- sysfun enthusiasts

## Why This Product

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

## Key Features

- • **Discreet, ergonomic fit:** Ultra-mini, nearly invisible design that fits snugly and comfortably for all-day wear—even while sleeping.
- • **Versatile for every lifestyle:** Water-resistant and lightweight, designed for sports, work, and relaxation—your all-in-one audio companion.
- • **All-day power, zero interruptions:** Enjoy up to 12 hours of continuous playback—power through work, workouts, and wind-downs without a recharge.
- • **Clear calls, crisp spoken content:** Built-in mic optimized for voice clarity, ideal for calls, podcasts, and audiobooks—stay heard, stay productive.
- • **Seamless Bluetooth 4.0 connectivity:** Stay connected with a stable 10-meter wireless range, perfect for multitasking professionals on the move.

## Overview

The SYSFUN X7 is a single, mini in-ear Bluetooth earbud featuring Bluetooth 4.0 with a 10-meter range, 12 hours of continuous battery life, and a built-in microphone for clear calls. Its nearly invisible design fits most ears comfortably, making it ideal for sports, work, and sleep. Water-resistant and lightweight, it offers reliable sound isolation and touch controls, catering to professionals seeking discreet, all-day wireless audio.

## Description

desertcart.com: SYSFUN Single Bluetooth Wireless Earbud, Mini Invisible in-Ear Wireless Bluetooth Headphone 12 Hours Super Long Battery Life Suitable for Sports Work and Sleep - Black : Electronics

## Features

- The SYSFUN X7 single wireless bluetooth earbud is a product that it is worth much more than the price. It’s a refined and mini, in-ear design, almost invisible after wearing it. Designed to fit snugly in MOST ears, making it great for Walking, Running, Jogging, Hiking, Biking, Gym, Driving, Working, Relaxing, etc. (Please see our image gallery for a detailed fit guide).
- The sound quality is not comparable to high-end headphones, BUT it is definitely not junk, no noise, has nice sound for listening to music, audiobooks, and podcasts. It truly excels for spoken content and provides a built-in mic for very clear calls.
- No need to worry about running out of power, it’s super long battery life for more than 12 hours of continuous to listening music. For optimal battery health and longevity, please follow the charging instructions in the notes below.
- Comfortable enough to fall asleep with, listening to natural sounds all night with the small earbud worn discreetly and securely hidden in your ear. (For the most secure fit, try gently rotating the earbud forward after insertion).
- You are purchasing ONE single earbud. Want stereo sound? Simply order 2pcs and they can be paired for a full stereo experience (See Product Description for pairing instructions). To avoid connection issues with other devices, please ensure you disconnect the earbud from the previous device before pairing with a new one. To prevent damage, DO NOT use PD or any fast charger over 15W. No charging case is included.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BQ2LDNMQ |
| Additional Features | Button Control, Lightweight, Microphone Included |
| Age Range Description | All |
| Antenna Location | Audio Monitoring, Calling, Cycling, Exercising, Gaming, Motorcycling, Running, Skateboarding, Snowboarding |
| Audio Driver Type | Dynamic Driver |
| Battery Average Life | 12 Hours |
| Battery Charge Time | 2.5 Hours |
| Best Sellers Rank | #9,579 in Electronics ( See Top 100 in Electronics ) #668 in Earbud & In-Ear Headphones |
| Bluetooth Range | 10 Meters |
| Bluetooth Version | 4.0 |
| Brand Name | SYSFUN |
| Built-In Media | Charger Cable, Ear Cushions, Single Wireless Bluetooth Earbud |
| Cable Features | Detachable |
| Color | Black |
| Compatible Devices | Tablets |
| Connectivity Technology | Wireless |
| Control Method | Touch |
| Control Type | Media Control |
| Customer Package Type | Polypropylene Package |
| Customer Reviews | 3.8 3.8 out of 5 stars (1,531) |
| Earpiece Shape | Rounded tips |
| Enclosure Material | Plastic |
| Frequency Range | 20Hz - 20,000Hz |
| Headphone Folding Features | In Ear |
| Headphone Jack | No Jack |
| Headphones Ear Placement | In Ear |
| Impedance | 32 Ohms |
| Is Autographed | No |
| Item Type Name | Single Wireless Bluetooth Earbud |
| Item Weight | 3.3 Grams |
| Manufacturer | SYSFUN |
| Model Name | X7 |
| Model Number | X7 |
| Noise Control | Sound Isolation |
| Number of Items | 1 |
| Specific Uses For Product | Personal, Business, Sleep, Sports, Video, Audio, TV, Gaming |
| Style Name | Classic |
| Theme | Audio, Movie, Sleep, Sports, TV Series |
| Unit Count | 1 Count |
| Warranty Description | 12 Months Warranty |
| Water Resistance Level | Water Resistant |
| Wireless Technology | Bluetooth |

## Product Details

- **Brand:** SYSFUN
- **Color:** Black
- **Ear Placement:** In Ear
- **Form Factor:** In Ear
- **Impedance:** 32 Ohms

## Images

![Single Bluetooth Wireless Earbud, Mini Invisible in-Ear Wireless Bluetooth Headphone 12 Hours Super Long Battery Life Suitable for Sports Work and Sleep - Black - Image 1](https://m.media-amazon.com/images/I/51aRFA6cHpL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Why aren't there any reviews from folks who paid for this item?**
A: I paid for it, and let me tell you, for what it is, it’s WORTH IT. It lasts awhile, and sound quality is actually pretty good! Only downside is the little rubber earbud that comes with it comes off quite easily but as long as you keep it snug and are aware of it it isn’t an issue.

**Q: Does this earbud have charging cable?  I see yes & no on the site.  Which is it?**
A: Yes it comes with a charging cable

**Q: Can you sllep with them on or does it fall off**
A: You could fall asleep with it in but there's always a chance of it falling out. 
Mine has even fallen out when I was Driving.
But for the most part it's alright.

**Q: Has anyone successfully paired these earbuds TOGETHER for surround sound? My phone will only play through one bud at a time.**
A: These ear bud are to be used one at time they are single ear buds.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.co.uk/products/507895884-single-bluetooth-wireless-earbud-mini-invisible-in-ear-wireless-bluetooth](https://www.desertcart.co.uk/products/507895884-single-bluetooth-wireless-earbud-mini-invisible-in-ear-wireless-bluetooth)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-26*