---
product_id: 421434212
title: "Bluetooth Headphones, Bluetooth 5.0 Wireless Earbuds for Car with 260mAh Charging Box, Increased Comfort (X21S Nude)"
brand: "szhtfx"
price: "฿114"
currency: THB
in_stock: false
reviews_count: 8
url: https://www.desertcart.co.th/products/421434212-bluetooth-headphones-bluetooth-5-0-wireless-earbuds-for-car-260mah
store_origin: TH
region: Thailand
---

# IPX5 water-resistant for active use Bluetooth 5.1 with 10m+ range 260mAh charging case, 4-6 full charges Bluetooth Headphones, Bluetooth 5.0 Wireless Earbuds for Car with 260mAh Charging Box, Increased Comfort (X21S Nude)

**Brand:** szhtfx
**Price:** ฿114
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Disappear into sound with the tiniest, toughest earbuds on the block!

## Quick Answers

- **What is this?** Bluetooth Headphones, Bluetooth 5.0 Wireless Earbuds for Car with 260mAh Charging Box, Increased Comfort (X21S Nude) by szhtfx
- **How much does it cost?** ฿114 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/421434212-bluetooth-headphones-bluetooth-5-0-wireless-earbuds-for-car-260mah)

## Best For

- szhtfx enthusiasts

## Why This Product

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

## Key Features

- • **All-Day Power:** Up to 6 hours continuous playback per charge, plus 4-6 recharges from the sleek 260mAh case.
- • **Sweat & Splash Proof:** IPX5 rating means these earbuds keep up with your workouts, runs, and outdoor adventures.
- • **Invisible Comfort Fit:** Ultra-compact 18x16x12mm earbuds weigh just 3g—wear all day without noticing.
- • **Seamless True Wireless Stereo:** Switch effortlessly between binaural and monaural modes with one-button control.
- • **Crystal Clear Sound & Low Latency:** Balanced armature drivers with AAC coding deliver rich, dynamic audio and ultra-low latency for gaming and calls.

## Overview

The SZHTFX X21S Nude Bluetooth 5.1 earbuds combine ultra-compact design with powerful 260mAh charging case, delivering up to 6 hours of continuous playback and seamless switching between mono and stereo modes. Featuring IPX5 water resistance, AAC audio coding, and balanced armature drivers, these earbuds offer crisp, low-latency sound perfect for work, workouts, and travel. Lightweight and nearly invisible, they redefine comfort and convenience for the modern professional on the move.

## Description

Product Description Seamless Switching Single/Twin Mode With the latest T rue Wireless Stereo technology , there is no difference between the left and right ear, there is a difference between the main ear and the secondary ear.T ake the headset out of the charging case, the indicator light on the main ear side flashes blue and red alternately, the indicator light on the secondary ear side goes off. The product can be used as a binaural earphone or as a one-ear earphone. 1） As binaural earphones: Press and hold on the sensor part of the main ear and accessory ear earphones to turn on the left ear and right ear earphones. 2） As a one-ear earphone: With the latest True Wireless Stereo technology , there is no distinction between the left ear and the right ear, so long-press earphones are turned on in the left ear / right ear sensor part. ====================================================== HIFI Sound & AAC Coding With triple-layer composite diaphragms and true wireless earphones . provides powerful stereo sound with fab dynamics and crisp definition, working effectively producing dynamically balanced audio with impressive power. Smooth Transmission & Ultra Low Latency In-Ear wireless earbuds provides a more snug in-ear fit, creating a perfect seal for crystal clear sound. Compact, but sturdy, its charging case will fit in any bag or pocket you’re taking on-the-go with you. IPX5 Waterproof With IPX5 waterproof technology, Bluetooth headphones can easily resist sweat, water and raindrops. perfect for sports, fitness, running, hiking, yoga, travelling, driving or other outdoor activities to use these wireless earphones. Touch Control & Battery balance display Battery balance display tells the battery left in the charging case. The battery balance indicator consists of four blue display lights, each blue light is lit to indicate that the headphone case has almost 25% charge, all four blue lights are lit to prove that the headphone case is fully charged. Listen all day and all night long, thanks to up to 20 hours battery life you can easily rock out on the commute to work, power through your workouts and relax at home, all without having to stop. Sensitive and comfortable push-button control allows your easy access to volume , songs , phone calls , Monaural mode and binaural mode . Press 2 Times main ear : Increase volume Press 2 Times the secondary ear : Decrease the volume Long Press : Power on/off Press 3 Times main ear : Switch song--previous song Press 3 Times the secondary ear : Switch song--next song Press ONE Time : Pause music/play music To answer an incoming call : Press on the headset (Press on the headset again during a call will hang up the call.) To reject an incoming call : Long Press the headset for 2-3 seconds. Professional tuner team lineup Makes your music sound like the performer is right there beside you. Ultra-low-latency technology accelerates audio processing for smooth sound sync when playing games. ow to pair Bluetooth for the first time Start Bluetooth on your smartphone, search for the available device "X21S" and click on it. The connection will start and there will be an audio message when the connection is successful. The headset will automatically connect to your smartphone's Bluetooth without pairing the second time you use it. Check the remaining power of the headset in real time Check the remaining power of the headset in real time. The battery level of the headset will be displayed in the upper right corner of the phone, so that we can charge the headset in time.

Review: Small and compatable - Small and compact ideal sound for price, will be great whilst at work. Small storage box great for placing in pocket.
Review: Sound quality great - These are the smallest earbuds I’ve found which is a big thumbs up for me bcos I’ve got very small ears. They also have great sound quality. They’re a big must buy EarPods, you won’t be disappointed.

## Features

- INVISIBLE DESIGN & LIGHTWEIGHT DESIGN - Our products are sold to many countries, including Europe, USA and Japan. The case weighs only 3 g, and the headphones are small in the profile, are only 18 x 16 x 12 mm, so small that it is difficult to notice for everyone. These headphones are so comfortable that you will forget you are wearing them, even if you use them for a long time without getting tired.
- 【One Button & Fit the Ear】 One-button design allows one-handed operation. With one-button control, you can play/pause music, listen to next song, throw/hang up/reject calls, etc. The half-tube design that hugs the ear tightly minimizes fatigue on the ears and can be worn for a long time without having to worry about dropping it.
- Bluetooth 5.1 + EDR & Unique Headphone Mode: Bluetooth 5.1 + EDR for stronger signal and 10m longer transmission distance, compatible with iOS and Android. In addition, faster data transfer rate reduces latency and noise. Wireless stereo technology for left/right monaural support: switching from binaural to monaural mode can be done by simply inserting an ear into the case. The other ear remains uninfluenced and continues to function.
- 350mAh Charging Case & Anti-Lost The charging case not only prevents the Bluetooth headset from getting lost, but also allows charging multiple times at the same time. The headphones are securely attached when stored, so you don't have to worry about losing or dropping them. The standalone mode allows 6 hours of continuous music playback, and the headphones can be charged 4-6 times.
- 【Compatibility and Quality Assurance】Compatible with all Bluetooth enabled devices. For example: iPhone X/8/8 Plus/7/7 Plus, Samsung Galaxy If there is any quality problem within three months of normal use, you can exchange it for free for a new one. Please contact us via your order history on desertcart. Open your order history in your account services and click on "Contact seller" on the right of each order.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09LT21N1B |
| Age Range Description | Adult |
| Antenna Location | Calling |
| Audio Driver Type | Balanced Armature Driver |
| Battery Average Life | 4 Hours |
| Best Sellers Rank | 6,235 in In-Ear Headphones |
| Bluetooth Range | 10 Metres |
| Bluetooth Version | 5.1 |
| Box Contents | Wireless Charging Case |
| Brand | SZHTFX |
| Brand Name | SZHTFX |
| Cable Features | Without Cable |
| Colour | X21s-nude |
| Compatible Devices | Telephones |
| Control Method | Touch |
| Control Type | Touch Control |
| Customer Reviews | 3.7 out of 5 stars 1,100 Reviews |
| Ear placement | In Ear |
| Earpiece Shape | In Ear |
| Enclosure Material | Acrylonitrile Butadiene Styrene (ABS) |
| Form factor | In Ear |
| Frequency Range | 20 Hz - 20,000 Hz |
| Headphone Form Factor | In Ear |
| Headphone Jack | No Jack |
| Headphones Ear Placement | In Ear |
| Impedance | 32 Ohms |
| Item Weight | 3 Grams |
| Manufacturer | SZHTFX |
| Model Name | SZHTFX |
| Model Number | SZHTFX |
| Network Connectivity Technology | Wireless |
| Noise Control | Sound Isolation |
| Noise control | Sound Isolation |
| Number of Items | 1 |
| Product Features | Wireless |
| Specific Uses For Product | Music, Sport, Travel, Communication |
| Style Name | In-ear |
| Subject Character | no character |
| Theme | Music |
| UPC | 768564086068 |
| Water Resistance Level | Water Resistant |
| Wireless Technology Type | Bluetooth |

## Product Details

- **Brand:** SZHTFX
- **Colour:** nude
- **Ear placement:** In Ear
- **Form factor:** In Ear
- **Impedance:** 32 Ohms
- **Noise control:** Sound Isolation
- **Headphone jack:** No Jack
- **Model name:** SZHTFX
- **Connectivity technology:** Wireless
- **Wireless communication technology:** Bluetooth

## Images

![Bluetooth Headphones, Bluetooth 5.0 Wireless Earbuds for Car with 260mAh Charging Box, Increased Comfort (X21S Nude) - Image 1](https://m.media-amazon.com/images/I/41gy5jOvmYL.jpg)
![Bluetooth Headphones, Bluetooth 5.0 Wireless Earbuds for Car with 260mAh Charging Box, Increased Comfort (X21S Nude) - Image 2](https://m.media-amazon.com/images/I/61IhPr7SPCL.jpg)
![Bluetooth Headphones, Bluetooth 5.0 Wireless Earbuds for Car with 260mAh Charging Box, Increased Comfort (X21S Nude) - Image 3](https://m.media-amazon.com/images/I/61RTkvz2j3L.jpg)
![Bluetooth Headphones, Bluetooth 5.0 Wireless Earbuds for Car with 260mAh Charging Box, Increased Comfort (X21S Nude) - Image 4](https://m.media-amazon.com/images/I/71tQADBMeTL.jpg)
![Bluetooth Headphones, Bluetooth 5.0 Wireless Earbuds for Car with 260mAh Charging Box, Increased Comfort (X21S Nude) - Image 5](https://m.media-amazon.com/images/I/61sdfg3sjBL.jpg)

## Questions & Answers

**Q: How do you change prompts to english? the first one i have was already set that way but my new one is in chinese.**
A: Couldn’t figure it out either.  Mine is still in Chinese. I got used to it.  Lol

**Q: Do these come in black?**
A: They come in nude, black and white according to the description.

**Q: What feedback do you get from people on the other side of calls?  "I can hear you fine", "you sound muffled", "sound like in a tin can"?  Thx**
A: Pretty decent and clear unless driving with window open. It picks up sounds well.

**Q: Can you just wear one of the earbuds**
A: Yes, it works if you want to just wear one and then switch to the other later in the day

## Customer Reviews

### ⭐⭐⭐⭐⭐ Small and compatable
*by L***Y on 3 June 2022*

Small and compact ideal sound for price, will be great whilst at work. Small storage box great for placing in pocket.

### ⭐⭐⭐⭐⭐ Sound quality great
*by M***S on 17 June 2023*

These are the smallest earbuds I’ve found which is a big thumbs up for me bcos I’ve got very small ears. They also have great sound quality. They’re a big must buy EarPods, you won’t be disappointed.

### ⭐ Worst earphones
*by M***E on 12 March 2025*

Don’t buy it! Quality is terrible, it feels so plastic and cheap materials, not only that, it is very fragile and with just one time falling from your ear, it will tear apart. Sound is ok, but not close to be the best compared to many other with same price. One of the earphones doesn’t charge up. I put them to charge but only one of them charge. I have bought many earphones before but I will say it is one of the worst. I don’t recommend it at all.

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**Shop now:** [https://www.desertcart.co.th/products/421434212-bluetooth-headphones-bluetooth-5-0-wireless-earbuds-for-car-260mah](https://www.desertcart.co.th/products/421434212-bluetooth-headphones-bluetooth-5-0-wireless-earbuds-for-car-260mah)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-27*