Why Choose Crutchfield?
Great gear and expert advice
Our experts help you pick the ideal gear for your needs.Meet our advisors
Free tech support for the life of your gear.Read about our one-on-one expert help
You may return items that are complete and like new for any reason within 60 days.See the details of our return policy
Earn one point for every dollar you spend and use those points to save on future purchases.Get full details on Crutchfield Rewards
Deep discounts on car installation gear
We offer vehicle-specific installation instructions, dash kits, wiring harnesses, and speaker accessories at deeply discounted prices with car stereo and speaker purchases. Available for most vehicles.Learn more
Trusted since 1974
Our customers have trusted us with their business, and they’ve helped us win awards for our service.Check out our most recent awards
The manufacturer’s warranty always applies.See more details
Portable wireless powered speaker system
From Korus: Portable Wireless Speakers
Item # 847V400 | MFR # V400
This item is no longer available.
Our take on the Korus V400 by Crutchfield's Ralph Graves
Just pass the Baton
The Korus V400 portable powered speaker system makes a great addition to your kitchen, den, or bedroom. It also makes wireless audio just about simple as it can get. You don't have to download an app, program your devices or do anything complicated. Just insert one of the included Korus Baton audio transmitters into your iPhone®, iPod touch®, or iPad® (both 30-pin and Lightning® connector Batons are included). The Baton has all the software necessary to stream audio from your device to the V400. Within seconds, you're enjoying everything you can play on your Apple device with great sound — stored music, Internet radio, game sound effects, video soundtracks, and online music services.
The Baton can stream to as many as four Korus speakers simultaneously. And if your friend wants to share some music from their Apple portable? Just pass a Baton.
The system also comes with a USB Baton, so you can stream directly from your computer to the Korus V400.
The V400 features a stereo pair of high-performance tweeters and woofers angled outward to create an expansive soundstage. The key to the system's robust sound is an innovative acoustic signature called LiveStage™, which projects a multi-dimensional image, placing vocals to the front and accompanying instruments further back in the sound field. You'll enjoy crystal-clear, distortion-free sound at any volume level.
Praise for the Korus V400 and V600 from the gadgeteer
"To Buy or Not to Buy?.the answer is a resounding yes. You'll definitely be impressed with the audio quality and ease of use of these speakers."
— From Julie Strietelmeier's review in the gadgeteer, December 19, 2013
Read the full review
There's plenty to like about the Korus system.
"The convenience bests Bluetooth easily, and the audio quality is top-notch; being able to rapidly flip from source to source and even move the speakers around."
— From Chris Davies' review in SlashGear, December 20, 2013
Read the full review
Innovative wireless technology
Patented SKAA® wireless technology offers exceptional sound quality while creating a stable connection with your Korus speaker to prevent drop-outs. And it can do so at a range of up to 65 feet. It also carries control commands from the Baton to the V400.
When connected to the Baton (not shown), which includes its own built-in software, your Apple portable can stream simultaneously to up to 4 V400s
The polished surfaces and clean lines of the V400 make it a handsome addition to any room's décor. The brushed aluminum control panel provides a smart visual accent, and makes the buttons easy to find and use. An integrated rear handle lets you conveniently carry the system from room to room.
What's in the Box:
- Wireless powered speaker
- 5' AC power cord
- Two 40" USB/Baton charging cables
- 30-Pin Baton
- Lightning Baton
- USB Baton
- Owners Manual
- Getting Started Guide
- FCC /IC Information
- allows wireless playback from Apple® iPhone®, iPod touch®, and iPad® with provided 30-pin and Lightning connector Baton audio transmitter
- allows wireless playback from a PC® or Mac® computer with provided USB Baton
- patented SKAA® technology delivers exceptional audio clarity and a highly stable wireless connection
- range: up to 65 feet
- LiveStage Acoustic Signature for multi-dimensional sound stage
- 2 front-firing tweeters and woofers
- frequency response: 125-20,000 Hz
- stereo minijack auxiliary input for portable devices
- can be used with up to three other Korus wireless speakers for simultaneous streaming
- built in carry handle
- AC power adapter
- 11"W x 5-1/2"H x 6"D
- weight: 4.4 lbs.
- warranty: 1 year
- Our 60-day money-back guarantee
LiveStage Acoustic Signature Design: The Korus V400 wireless powered speaker is designed with a unique and innovative acoustic signature called LiveStage that projects a multi-dimensional sound platform with the vocals up front and other instruments, like guitars and drums, placed in back. As a result, the V400 provides greater depth to your music with a richer, more dynamic sound. The V400 employs two front-firing tweeters and mid-woofers with a frequency response of 125-20,000 Hz. Its 60-watt amplifier and two front-firing ports ensure you can play your music loud and clear.
Patented SKAA Wireless Technology: The Korus V400 powered speaker uses patented SKAA wireless audio technology to prevent clicks, pops, and, dropouts of your music so you hear exactly what you should without any interruption. Compared to Bluetooth wireless speakers that can sometimes drop their signal, causing the music to stutter, lag, or even stop completely. SKAA wireless technology also delivers exceptional audio clarity and detail over greater distances (up to 65') than Bluetooth, so you can roam further from the V400 speaker and still keep your music playing. SKAA wireless audio technology can stream your music at up to 480 kbps bit-rate.
Variety of Audio Sources: The Korus V400 speakers allows you to wirelessly stream music from your Windows/Mac computer or Apple iPod/iPhone/iPad devices (30-pin or Lightning) using the included proprietary "Baton" wireless audio transmitters. You'll be able to wirelessly stream stored music and music apps from your compatible Apple device or Windows/Mac computer to the Korus V400. The V400 also includes a 3.5mm auxiliary input for a wired connection.
- USB Baton: The included USB Baton wireless audio transmitter features a male USB (type-A) connector which plugs into a free USB (type-A) port on your laptop or computer. The USB Baton is compatible with both Windows PC and Mac computer.
- Lightning Baton: The included Lightning Baton wireless audio transmitter features a male Lightning connector which plugs into your Apple mobile device with a Lightning port. Its compatible with iPod touch (5th gen), iPhone 5S/5C/5, and iPad 4/Air/mini.
- 30-Pin Baton: The included 30-pin Baton wireless audio transmitter features a male 30-pin connector which plugs into your Apple mobile device with a 30-pin port. Its compatible with iPod touch (3rd/4th gen), iPhone 4S/4/3GS, and iPad 1/2/3.
- Aux Input: The Korus V400 is also fitted with a 3.5mm auxiliary input to connect virtually any portable audio device with a headphone output. "Baton" wireless audio transmitters
Note: A total of 10 Baton wireless audio transmitters (3 included, others sold separately) can be connected to the Korus V400 speaker. You can switch between Batons at the speaker.
Korus App: Download the free Korus Volume Control app onto your Apple iPod touch, iPhone, or iPad (running iOS 5.0+) for volume control from the touchscreen of your Apple device. The Korus app allows you to independently control the volume level on 1 to 4 speakers, or use a master control to adjust the volume level for a group of speakers together. The app also allows you to name each Baton and each speaker something that is meaningful to you.
Note: Music navigation and song/artist information display will still be done through your Apple device or laptop/computer, not the Korus app or powered speaker.
Multi-Room System Capability: Add more Korus wireless speakers (sold separately) and build your own multi-room audio system in your home. Each Baton can stream the same song from your compatible Apple device to as many as four Korus speakers simultaneously with perfect synchronization. Put four speakers in one room, or spread your Korus system throughout your home; place a speaker in the kitchen, in the living room, the bedroom, bathroom, etc.. You can reconfigure multiple Korus speakers to work together or separately with the touch of a button on the speaker.
Charge Your Apple Device: Keep the music playing while you charge your iPod touch, iPad, or iPhone (30-pin or Lightning). The Korus includes two 40" USB Charging Cable that plug into the Batons on one end of your Apple devices and into any standard USB power adapter or computer port on the other end. The pass-through charging keeps your device powered while you stream audio to the Korus V400 speaker. It is the perfect solution for extended listening sessions. Additional charging cables (847CHGCBLE, sold separately) can be purchased.
Note: The USB charging cable does not support data sync operation between your Apple device and your computer. During charging, the USB charge cable can impact wireless range between your Apple device and the Korus speaker up to 30%.
Compact Design w/ Carry Handle: The Korus V400's compact design fits almost anywhere; your kitchen counter top, office desk, den shelf, or bedroom night table. And the convenient integrated handle makes it easy to move the speaker when desired. The integrated carry handle can also be used to wrap excess power cord when used next to a power outlet.
AC Power: The Korus V400 wireless powered speaker operates off of standard household current using the supplied 5' detachable AC power cord.
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.