---
product_id: 50313383
title: "D51 Bluetooth Speaker, Portable Wireless Mini Speaker with 10W Output, AUX Input, Compact Travel Size Stereo Sound for iPhone, Indoor and Outdoor Use"
brand: "betron"
price: "€ 57.92"
currency: EUR
in_stock: true
reviews_count: 8
category: "Betron"
url: https://www.desertcart.es/products/50313383-d51-bluetooth-speaker-portable-wireless-mini-speaker-with-10w-output
store_origin: ES
region: Spain
---

# 10m Bluetooth range 10W stereo output 10-hour battery life D51 Bluetooth Speaker, Portable Wireless Mini Speaker with 10W Output, AUX Input, Compact Travel Size Stereo Sound for iPhone, Indoor and Outdoor Use

**Brand:** betron
**Price:** € 57.92
**Availability:** ✅ In Stock

## Summary

> 🎶 Small Speaker, Big Sound, Zero Compromise!

## Quick Answers

- **What is this?** D51 Bluetooth Speaker, Portable Wireless Mini Speaker with 10W Output, AUX Input, Compact Travel Size Stereo Sound for iPhone, Indoor and Outdoor Use by betron
- **How much does it cost?** € 57.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/50313383-d51-bluetooth-speaker-portable-wireless-mini-speaker-with-10w-output)

## Best For

- betron enthusiasts

## Why This Product

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

## Key Features

- • **All-Day Playback:** Up to 10 hours of uninterrupted music to keep your vibe going from dawn till dusk.
- • **Hands-Free Calls:** Built-in microphone lets you switch effortlessly between music and calls without missing a beat.
- • **Compact Powerhouse:** 10W stereo sound that fills any room or outdoor space with crisp clarity.
- • **Travel-Ready Design:** Lightweight and water-resistant build fits perfectly in your bag for on-the-go sound.
- • **Seamless Connectivity:** Bluetooth with a 10-meter range plus AUX input for versatile device pairing.

## Overview

The Betron D51 is a sleek, portable Bluetooth speaker delivering 10W of clear stereo sound with up to 10 hours of battery life. Its lightweight, water-resistant design and 10-meter wireless range make it perfect for both indoor and outdoor use. Equipped with AUX input and a built-in microphone, it offers versatile connectivity and hands-free calling, making it an ideal companion for millennials balancing work, travel, and leisure.

## Description

Compact, water-resistant Bluetooth speaker with 10W output, clear stereo sound, easy connectivity, and up to 10 hours of battery life for music, podcasts, and more.

Review: Small but mighty. - Great wee speaker. Surprisingly good sound quality for the size and price.
Review: Best bluetooth speaker under £25 in its class in my opinion. - Excellent clear dynamic sound with very loud volume on maximum at 10 watts total;loud enough for a large room;at maximum volume, speaker was good for around 3 hrs thus the stated battery life of upto 10 hrs is based on around 3 watts or a third of the maximum volume setting this volume would be adequate for a small to very small room.To control volume level this can only be done on your bluetooth device such as a smartphone/tablet etc. as no visual indications on bluetooth speaker regarding volume.Surprised that no visual indication on speaker but this is only a small thing as can be set by your device.It takes around 3 hrs to charge from empty.You will know its running out of power as it will beep a number of times and then decrease and eventually switch off.Very impressed with the loudness of this bluetooth speaker as well as the dynamic audio range and clarity of sound with some bass but not too much thus well defined clear high quality audio.Very Highly Recommended. Update in Feb 21:After using these high grade Bluetooth portable speakers for around 10 mths now;the positives I would say is that you can answer calls has built in microphone in speaker;it accepts TF card(memory cards upto 64GB),it has an AUX port as well as comes supplied with excellent grade 3.5mm audio cable and micro usb charge cable;it is also fairly light considering at 375gms and also very straightforward and easy to connect to Bluetooth devices.I have always found all the audio products such as wired earphones,headphones and most recently Bluetooth headphones exceptionally high grade and excellent value for money.The slight negatives:battery capacity is 2200mAh thus lower battery rating of upto 10 hrs and no waterproof rating but I already knew this when I purchased this excellent little speaker.I have not been able to directly compare with other Bluetooth speakers until very recently when I bought some Reka 30 watts waterproof speakers from Aldi but these are obviously higher rated with features and technology.However I have been able to compare these Betron D51 Bluetooth Speakers with TDK Portable Stereo Speaker and Gear4 HouseParty 3 Home Stereo speaker system with FM radio for iPod;both from yesteryear.The TDK are around 15 watts and Gear4 HouseParty 3 Speaker system is 30 watts however these are mains operated speakers and do not have Bluetooth facility and are both excellent high grade speakers and funny enough I bought from car boot sale for £1(TDK)and £8(Gear4 HouseParty 3);their normal price is between £40-£100 checking online.After checking at length and in depth reviews of both expert and customer reviews;I personally would say Anker SoundCore 2 Portable Speaker with 12 Watt Stereo Sound(approx £40)and Tribit XSound Go 12 Watt Portable Speaker(approx £35)may be possibly better than or at least on par with Betron D51 Speaker;also these both have bigger batteries between 4200mAh and 5600mAh thus higher rated power of upto 24hrs each and they are both IPX7 rated thus completely waterproof including being submersible for a limited time.I have Anker power adaptors,cables and powerbanks and I've been very impressed with the very high quality;exceptional customer service and competitive prices.All of my Anker products are all working well even my old 10000mAh PowerBank and many fast chargers,cables and 20000mAh PowerBank that are around 2 to 4 yrs old thus on that basis;I would say Anker Soundcore would be an excellent alternative Bluetooth speaker if your budget can stretch to £40.At this budget I would say Anker and Tribit I personally would go for at this budget.However after saying all this I rate the Betron D51 Bluetooth Speaker has Best Bluetooth Speaker under £25.By the way when I purchased this back in April 2020 I paid just £21 thus at the time significantly less than both the Anker and Trinity's and the time I wasn't concerned with waterproof speaker and upto 24 hr battery power between charges.Now that I have Reka 30 watts waterproof speakers these now tick these boxes and much more and I can pair between the 2 speakers I purchased around a week ago.I am very impressed with these speakers on so many levels;exceptional;with even a 3 yr warranty but I digress.Hope this updates helps thus I have changed my original title for this review to Best bluetooth speaker under £25 in it's class as opposed to Best bluetooth speaker under £50 in my opinion.

## Features

- Portable and compact design makes the Betron D51 Bluetooth speaker ideal for travel, holidays, outdoor activities, or everyday use at home or in the office
- Delivers clear stereo sound with 10W total output, suitable for listening to music, podcasts, audiobooks, and more in both indoor and outdoor environments
- Connects easily via Bluetooth with a 10-metre wireless range and includes an AUX input for wired playback from smartphones, tablets, laptops, and MP3 players
- Lightweight and water-resistant construction allows you to carry the speaker with ease and use it in casual outdoor settings such as gardens, parks, or campsites
- Up to 10 hours of battery life on a single charge provides long-lasting playback throughout the day, with included AUX and charging cables for convenience

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0776LHP95 |
| Best Sellers Rank | 129 in Portable Bluetooth Speakers |
| Colour | Black |
| Compatible devices | Gaming Console, Laptop, MP3 Player, Smartphone, Tablet |
| Control method | Voice |
| Guaranteed software updates until | unknown |
| Impedance | 4 Ohms |
| Included components | Aux Cable, Bluetooth Speaker, Charging Cable, User Manual |
| Is waterproof | False |
| Item model number | D51 |
| Item weight | 0.51 Kilograms |
| Manufacturer | Betron |
| Maximum range | 10 Metres |
| Number of items | 1 |
| Power source | Battery Powered |
| Product dimensions | 5.6D x 18W x 7H centimetres |
| Recommended uses for product | For computers, For music players, For smartphones or tablets |
| Speaker size | 40 Millimetres |
| Special feature | Built In Microphone, Hi Res Audio, Lightweight, Portable, USB Port |
| Subwoofer diameter | 40 Millimetres |
| Surround-sound channel configuration | 2.0 |
| Unit count | 1.0 count |
| Warranty type | Limited |
| Wireless communication technology | Bluetooth |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** Betron
- **Connectivity technology:** Bluetooth
- **Frequency response:** 20000 Hz
- **Input voltage:** 5 Volts
- **Material:** Plastic
- **Model name:** D51
- **Mounting type:** Tabletop Mount
- **Speaker maximum output power:** 10 Watts
- **Speaker type:** Portable Speaker

## Images

![D51 Bluetooth Speaker, Portable Wireless Mini Speaker with 10W Output, AUX Input, Compact Travel Size Stereo Sound for iPhone, Indoor and Outdoor Use - Image 1](https://m.media-amazon.com/images/I/810jzpUu-vL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Small but mighty.
*by L***S on 12 December 2025*

Great wee speaker. Surprisingly good sound quality for the size and price.

### ⭐⭐⭐⭐⭐ Best bluetooth speaker under £25 in its class in my opinion.
*by S***A on 3 June 2020*

Excellent clear dynamic sound with very loud volume on maximum at 10 watts total;loud enough for a large room;at maximum volume, speaker was good for around 3 hrs thus the stated battery life of upto 10 hrs is based on around 3 watts or a third of the maximum volume setting this volume would be adequate for a small to very small room.To control volume level this can only be done on your bluetooth device such as a smartphone/tablet etc. as no visual indications on bluetooth speaker regarding volume.Surprised that no visual indication on speaker but this is only a small thing as can be set by your device.It takes around 3 hrs to charge from empty.You will know its running out of power as it will beep a number of times and then decrease and eventually switch off.Very impressed with the loudness of this bluetooth speaker as well as the dynamic audio range and clarity of sound with some bass but not too much thus well defined clear high quality audio.Very Highly Recommended. Update in Feb 21:After using these high grade Bluetooth portable speakers for around 10 mths now;the positives I would say is that you can answer calls has built in microphone in speaker;it accepts TF card(memory cards upto 64GB),it has an AUX port as well as comes supplied with excellent grade 3.5mm audio cable and micro usb charge cable;it is also fairly light considering at 375gms and also very straightforward and easy to connect to Bluetooth devices.I have always found all the audio products such as wired earphones,headphones and most recently Bluetooth headphones exceptionally high grade and excellent value for money.The slight negatives:battery capacity is 2200mAh thus lower battery rating of upto 10 hrs and no waterproof rating but I already knew this when I purchased this excellent little speaker.I have not been able to directly compare with other Bluetooth speakers until very recently when I bought some Reka 30 watts waterproof speakers from Aldi but these are obviously higher rated with features and technology.However I have been able to compare these Betron D51 Bluetooth Speakers with TDK Portable Stereo Speaker and Gear4 HouseParty 3 Home Stereo speaker system with FM radio for iPod;both from yesteryear.The TDK are around 15 watts and Gear4 HouseParty 3 Speaker system is 30 watts however these are mains operated speakers and do not have Bluetooth facility and are both excellent high grade speakers and funny enough I bought from car boot sale for £1(TDK)and £8(Gear4 HouseParty 3);their normal price is between £40-£100 checking online.After checking at length and in depth reviews of both expert and customer reviews;I personally would say Anker SoundCore 2 Portable Speaker with 12 Watt Stereo Sound(approx £40)and Tribit XSound Go 12 Watt Portable Speaker(approx £35)may be possibly better than or at least on par with Betron D51 Speaker;also these both have bigger batteries between 4200mAh and 5600mAh thus higher rated power of upto 24hrs each and they are both IPX7 rated thus completely waterproof including being submersible for a limited time.I have Anker power adaptors,cables and powerbanks and I've been very impressed with the very high quality;exceptional customer service and competitive prices.All of my Anker products are all working well even my old 10000mAh PowerBank and many fast chargers,cables and 20000mAh PowerBank that are around 2 to 4 yrs old thus on that basis;I would say Anker Soundcore would be an excellent alternative Bluetooth speaker if your budget can stretch to £40.At this budget I would say Anker and Tribit I personally would go for at this budget.However after saying all this I rate the Betron D51 Bluetooth Speaker has Best Bluetooth Speaker under £25.By the way when I purchased this back in April 2020 I paid just £21 thus at the time significantly less than both the Anker and Trinity's and the time I wasn't concerned with waterproof speaker and upto 24 hr battery power between charges.Now that I have Reka 30 watts waterproof speakers these now tick these boxes and much more and I can pair between the 2 speakers I purchased around a week ago.I am very impressed with these speakers on so many levels;exceptional;with even a 3 yr warranty but I digress.Hope this updates helps thus I have changed my original title for this review to Best bluetooth speaker under £25 in it's class as opposed to Best bluetooth speaker under £50 in my opinion.

### ⭐⭐⭐⭐ Basic but ok
*by C***Z on 9 November 2024*

This is an ok speaker. It has good battery life, is solid and stable. Sound quality is ok. It doesn’t have depth but does a good enough job. The options of using SD card or usb are handy. There are a few downsides that limit it to 4 stars for me. It is heavy for a small speaker. You want it solid but the weight of it means I am unlikely to pop in my bag and travel with it. The on/off alert sounds are very loud. It also has poor volume control. When you turn it on it is really loud, and the adjustment goes from too loud, to too quiet, there is very little option in between.

## Frequently Bought Together

- Betron D51 Bluetooth Speaker, Portable Wireless Mini Speaker with 10W Output, AUX Input, Compact Travel Size Stereo Sound for iPhone, Indoor and Outdoor Use
- soundcore by Anker P20i True Wireless Earbuds, 10mm Drivers with Big Bass, Bluetooth 5.3, 30H Long Playtime, IPX5 Water-Resistant, 2 Mics for AI Clear Calls, 22 Preset EQs, Customization via App

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---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-23*