--- product_id: 699736090 title: "Harman Kardon Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black" brand: "harman kardon" price: "¥67918" currency: JPY in_stock: true reviews_count: 13 category: "Harman Kardon" url: https://www.desertcart.jp/products/699736090-harman-kardon-onyx-studio-9-portable-stereo-bluetooth-home-speaker store_origin: JP region: Japan --- # Dual-device Bluetooth pairing 50W powerful stereo output 8-hour battery life Harman Kardon Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black **Brand:** harman kardon **Price:** ¥67918 **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your space with sound that moves you—and your crew. ## Quick Answers - **What is this?** Harman Kardon Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black by harman kardon - **How much does it cost?** ¥67918 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/699736090-harman-kardon-onyx-studio-9-portable-stereo-bluetooth-home-speaker) ## 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 - • **Powerbank USB Port:** Keep your devices charged while you stream—never miss a moment or a call. - • **8-Hour Portable Power:** Take your soundtrack anywhere with a rechargeable battery that keeps the beat going all day. - • **Wireless Stereo Boost:** Pair two Onyx Studio 9 speakers for an expansive, immersive soundstage that commands attention. - • **Smart Self-Tuning Sound:** Automatic room calibration delivers flawless audio tailored to your space. - • **Seamless Dual-Device Streaming:** Switch effortlessly between two devices for uninterrupted party vibes. ## Overview The Harman Kardon Onyx Studio 9 is a sleek, portable Bluetooth speaker featuring 50W stereo output, 8-hour rechargeable battery, and smart self-tuning technology. It supports simultaneous connection of two devices, wireless pairing of two speakers for enhanced stereo sound, and includes a USB charging port to power your mobile devices on the go. Designed with a durable metal enclosure and a built-in handle made from 90% recycled aluminum, it combines premium audio performance with eco-conscious portability. ## Description Elevate your everyday listening to an extraordinary sound experience with the Harman Kardon Onyx Studio 9. This elegant wireless Bluetooth® movable home speaker delivers superior audio performance with crystal-clear vocals, bright highs, and deep bass that make your favorite music feel thrillingly immersive. Constant Sound Field technology widens the soundstage and improves the clarity and detail of your music. The substantial integrated handle (made with 90% recycled aluminum) and built-in battery with 8 hours of playtime make the Onyx Studio 9 easy to move with you in and around your home, and a built-in USB port recharges your device while you enjoy your music. And thanks to automatic self-tuning, it always delivers the best possible sound performance wherever you set it down. ## Features - Bluetooth music streaming: The Harman Kardon Onyx Studio 9 pairs seamlessly with up to two mobile devices simultaneously. Take turns sharing playlists and music, all in enhanced, dynamic sound. - Built-in battery: With its rechargeable built-in battery, you can enjoy the Harman Kardon Onyx Studio 9 anywhere in your home, and easily transport it from one room to another for up to 8 hours of playtime - Self-Tuning: Enjoy perfect sounds wherever you take the music. When you power on, the Onyx Studio 9 automatically calibrates to its environment, ensuring the best sound possible no matter where you set it down. - Boost stereo sound with two speakers: Quickly and easily turn up the celebration with a wider, more detailed soundstage by pairing two Onyx Studio 9 speakers together, wirelessly. - USB Charging port: Never worry about your mobile device running out of juice while you're streaming your favorite audiobook. The USB charging port means you and your device will always be ready for anything. - Harman Kardon One App: The Harman Kardon One app helps you easily set up the Onyx Studio 9 and personalize audio settings. You can also customize EQ and control all your compatible speakers in one convenient place. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DMHLTDBX | | Additional Features | Built-In Powerbank, Lightweight, Multi Room Audio, Portable, USB Port | | Antenna Location | For Smartphones or Tablets, For Computers, For Televisions | | Audio Driver Size | 13 Centimeters | | Audio Driver Type | Dynamic Driver | | Audio Output Mode | Stereo | | Battery Average Life | 8 Hours | | Best Sellers Rank | #287 in Portable Bluetooth Speakers #2,321 in MP3 & MP4 Player Accessories | | Brand | Harman Kardon | | Built-In Media | 1 x Harman Kardon Onyx Studio 9, 1 x Power Cable, Quick Start Guide, Safety Sheet, Warranty Card | | Color | Black | | Compatible Devices | Desktop, Laptop, Smartphone, Tablet | | Connectivity Protocol | Bluetooth, USB | | Connectivity Technology | Bluetooth, USB | | Control Method | App | | Customer Reviews | 4.7 out of 5 stars 394 Reviews | | Enclosure Material | Metal | | Frequency Response | 20000 KHz | | Is Waterproof | False | | Item Dimensions D x W x H | 5.12"D x 11.39"W x 11.32"H | | Item Weight | 9.4 Pounds | | MP3 player | No | | Manufacturer | Harman Kardon | | Model Name | HK Onyx Studio 9 | | Model Number | HKOS9BLKAM | | Mounting Type | Floor Standing | | Number of Audio Channels | 3.0 | | Number of Batteries | 1 9V batteries required. | | Number of Items | 1 | | Power Source | Battery Powered | | Signal-to-Noise Ratio | 80 dB | | Speaker Maximum Output Power | 50 Watts | | Speaker Size | 13 Centimeters | | Speaker Type | Portable Speaker | | Specific Uses For Product | Home entertainment, Portable, Multi-room audio | | UPC | 028292291104 | | Unit Count | 1.0 Count | | Warranty Description | 1 Year manufacturers warranty | | Warranty Type | Limited | | Wireless Technology | Bluetooth | ## Product Details - **Audio Output Mode:** Stereo - **Brand:** Harman Kardon - **Connectivity Technology:** Bluetooth, USB - **Frequency Response:** 20000 KHz - **Speaker Maximum Output Power:** 50 Watts ## Images ![Harman Kardon Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black - Image 1](https://m.media-amazon.com/images/I/A19xR9Pri8L.jpg) ![Harman Kardon Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black - Image 2](https://m.media-amazon.com/images/I/81RTY-MwuJL.jpg) ![Harman Kardon Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black - Image 3](https://m.media-amazon.com/images/I/91I4HYkPSFL.jpg) ![Harman Kardon Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black - Image 4](https://m.media-amazon.com/images/I/51-+0RVO3hL.jpg) ![Harman Kardon Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black - Image 5](https://m.media-amazon.com/images/I/81VjEqv9zcL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by L***N on February 21, 2026* ### ⭐⭐⭐⭐⭐ Review *by D***K on April 25, 2026* ### ⭐⭐⭐⭐⭐ Review *by G***O on March 25, 2026* ## Frequently Bought Together - Harman Kardon Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black - LTGEM Case Compatible with Harman Kardon Onyx Studio 9 Speaker, Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/699736090-harman-kardon-onyx-studio-9-portable-stereo-bluetooth-home-speaker](https://www.desertcart.jp/products/699736090-harman-kardon-onyx-studio-9-portable-stereo-bluetooth-home-speaker) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-10*