---
product_id: 260155686
title: "Harman Kardon Onyx Studio 4 – Portable Speaker, Wireless, Bluetooth 100 Black, Hkos4Blkbsg"
brand: "harman kardon"
price: "R59"
currency: ZAR
in_stock: false
reviews_count: 7
url: https://www.desertcart.co.za/products/260155686-harman-kardon-onyx-studio-4-portable-speaker-wireless-bluetooth-100
store_origin: ZA
region: South Africa
---

# Bluetooth 10m range 60W max output power 8-hour battery life Harman Kardon Onyx Studio 4 – Portable Speaker, Wireless, Bluetooth 100 Black, Hkos4Blkbsg

**Brand:** harman kardon
**Price:** R59
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate your sound game — where style meets unstoppable power!

## Quick Answers

- **What is this?** Harman Kardon Onyx Studio 4 – Portable Speaker, Wireless, Bluetooth 100 Black, Hkos4Blkbsg by harman kardon
- **How much does it cost?** R59 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/260155686-harman-kardon-onyx-studio-4-portable-speaker-wireless-bluetooth-100)

## Best For

- harman kardon enthusiasts

## Why This Product

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

## Key Features

- • **All-Day Wireless Freedom:** Enjoy up to 8 hours of uninterrupted music on a single charge with the robust 3000mAh lithium-ion battery.
- • **Hands-Free Smart Control:** Activate Siri or Google Now with your voice to effortlessly manage playlists, calls, and more without lifting a finger.
- • **Immersive Surround Sound:** Experience rich, dynamic audio with 2.0 channel surround sound and a powerful 60W output that fills any room.
- • **Crystal Clear Calls & Conferencing:** Built-in mic with noise and echo cancellation ensures your calls and group meetings sound flawless every time.
- • **Seamless Multi-Speaker Connectivity:** Amplify your vibe by linking over 100 HK Connect+ speakers for an epic, synchronized soundscape.

## Overview

The Harman Kardon Onyx Studio 4 is a sleek, portable Bluetooth speaker delivering 60 watts of rich surround sound. With an 8-hour battery life, HK Connect+ multi-speaker capability, and voice assistant integration, it’s designed for professionals who demand premium audio quality and seamless connectivity on the go.

## Description

From the manufacturer Wireless Bluetooth Streaming This Harman Kardon speaker comes with amazing Bluetooth connectivity and can be easily paired with smart devices like smartphones and tablets. Also, it features an HK Connect Plus technology that amplifies your audio experience by enabling you to connect more than 100 HK Connect+ enabled speakers simultaneously. Designed for your Convenience This Harman Kardon Onyx Studio speaker has a built in microphone that lets you answer phone calls, all with a simple button press. Also, the noise and echo cancellation enables you to receive crystal clear audio, thus making it the ideal choice for use in group conferencing. This speaker also enables you to access Siri or Google Now that makes it incredibly easy to change the tracks, listen to news and much more with just your voice. Long Battery Life This Onyx Studio 4 speaker is equipped with a 3000mAh Lithium-ion battery that can easily give a music playback time of up to eight hours. So, you can use it freely for hours without worrying about the amount of battery used.

Review: Onyx 4 thumbs up - I love the shape and speakers performance
Review: The best speaker in its class, but - Performance wise: by far the best Bluetooth speaker within its price range / grade and even beyond, crisp sound and deep bass which gives music what it needs. It gets 5 stars easily! Battery: After using the speaker for almost 3 years, it stops working if disconnected from the charger if the volume is above 40-50%, even if the battery is charged. I think the battery went bust, that’s why I gave 4 stars.

## Features

- Compatible with Smartphones
- Shape: Round
- Nominal Output 50 - 100 Watt

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074P79X9C |
| Additional Features | Bluetooth, Wireless |
| Antenna Location | For Computers, For Music Players, For Smartphones or Tablets |
| Audio Driver Size | 75 Millimeters |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Audio output mode | Surround |
| Battery Average Life | 8 Hours |
| Bluetooth Range | 10 Meters |
| Brand | Harman Kardon |
| Built-In Media | Portable Speaker |
| Color | Black |
| Compatible Devices | no aplica |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Control Method | App |
| Controller Type | Voice Control |
| Customer Package Type | standard package |
| Customer Reviews | 4.7 out of 5 stars 8,015 Reviews |
| Enclosure Material | does not apply |
| Global Trade Identification Number | 00028292280764 |
| Is Electric | Yes |
| Is Waterproof | True |
| Item Type Name | Portable Speaker |
| Item Weight | 7.2 Pounds |
| MP3 player | No |
| Manufacturer | Harman Kardon |
| Material | does not apply |
| Model Name | onyx studio 4 |
| Model Number | HKOS4BLKBSG |
| Mounting Type | Independent |
| Mounting type | Independent |
| Number of Audio Channels | 2.0 |
| Number of Batteries | 1 A batteries required. |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Speaker Maximum Output Power | 60 Watts |
| Speaker Size | 21.59 Centimeters |
| Speaker Type | Surround Sound |
| Speaker maximum output power | 60 Watts |
| Subwoofer Connectivity Technology | Wireless |
| Subwoofer Diameter | 8 Inches |
| Tweeter Diameter | 1 Inches |
| UPC | 028292280764 |
| Warranty Type | Limited |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 7.5 Centimeters |

## Product Details

- **Audio output mode:** Surround
- **Brand:** Harman Kardon
- **Connectivity technology:** Bluetooth
- **Mounting type:** Independent
- **Speaker maximum output power:** 60 Watts

## Images

![Harman Kardon Onyx Studio 4 – Portable Speaker, Wireless, Bluetooth 100 Black, Hkos4Blkbsg - Image 1](https://m.media-amazon.com/images/I/511BbMK+hPL.jpg)
![Harman Kardon Onyx Studio 4 – Portable Speaker, Wireless, Bluetooth 100 Black, Hkos4Blkbsg - Image 2](https://m.media-amazon.com/images/I/51AOtISdZXL.jpg)
![Harman Kardon Onyx Studio 4 – Portable Speaker, Wireless, Bluetooth 100 Black, Hkos4Blkbsg - Image 3](https://m.media-amazon.com/images/I/71+mDqi2ULL.jpg)
![Harman Kardon Onyx Studio 4 – Portable Speaker, Wireless, Bluetooth 100 Black, Hkos4Blkbsg - Image 4](https://m.media-amazon.com/images/I/715cjErvRsL.jpg)
![Harman Kardon Onyx Studio 4 – Portable Speaker, Wireless, Bluetooth 100 Black, Hkos4Blkbsg - Image 5](https://m.media-amazon.com/images/I/7101oBuFtzL.jpg)

## Questions & Answers

**Q: Hello! What is the difference between onyx 3 and onyx 4?**
A: The ONYX STUDIO 4 does have a slightly better sound quality. The other differences are:
Updated Bluetooth Version: ONYX STUDIO 3 - Version 4.1 ONYX STUDIO 4 - Version 4.2 (250% faster and more reliable over-the-air data transmission)
Dimension (H x W x D): ONYX STUDIO 3 - 278 mm x 162.8 mm x 258 mm ONYX STUDIO 4 - 260 mm x 278 mm x 159.5 mm (a bit smaller in terms of height but wider)
Wireless Feature: ONYX STUDIO 3 - Wireless Dual Sound (can connect 2 speakers with the same feature) ONYX STUDIO 4 - HK Connect+ (can connect up to 100+ HK Connect+ enabled speakers) 
Weight: ONYX STUDIO 3 – 2071g ONYX STUDIO 4 – 2061g
Battery: ONYX STUDIO 3 – 3.7V/2600mAh ONYX STUDIO 4 – 3.7V/3000mAh

**Q: How does the charging works,and how about countries using 240V?**
A: Comes with a charging device power supply. For 240v, you may need a convertor to convert the wall plug connection.

**Q: Can you link 2 speakers if the source audio is not bluetooth? Iike if your source audio is through the axillary port?**
A: You can connect each onyx to each other through the bluetooth and then just have the aux to one of the speakers

**Q: What is the decibal level?**
A: Here is the watts level, and decibels.

Signal to noise ratio: 80dB A

watts rate: 4 x 15W (AC mode); 4 x 7.5W (Battery mode

## Customer Reviews

### ⭐⭐⭐⭐⭐ Onyx 4 thumbs up
*by H***D on 13 December 2019*

I love the shape and speakers performance

### ⭐⭐⭐⭐ The best speaker in its class, but
*by A***A on 14 December 2021*

Performance wise: by far the best Bluetooth speaker within its price range / grade and even beyond, crisp sound and deep bass which gives music what it needs. It gets 5 stars easily! Battery: After using the speaker for almost 3 years, it stops working if disconnected from the charger if the volume is above 40-50%, even if the battery is charged. I think the battery went bust, that’s why I gave 4 stars.

### ⭐⭐⭐⭐⭐ Ottimo funzionamento e qualità del suono
*by L***Y on 28 February 2024*

Ho istallato due nella camera e uno nel bagno e ci metterò un terzo nella seconda camera. Il pairing col'iphone funziona perfettamente. Bisogna collegare solo uno al telefono, l-altro si collega tramite un tasto sul speaker al altro speaker. Facile. Il suono é davvero impressionante, un pò bass heavy. Comunque ottimo acquisto.

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**Shop now:** [https://www.desertcart.co.za/products/260155686-harman-kardon-onyx-studio-4-portable-speaker-wireless-bluetooth-100](https://www.desertcart.co.za/products/260155686-harman-kardon-onyx-studio-4-portable-speaker-wireless-bluetooth-100)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-06-19*