Big features and bold style

With JVC's KW-X840BTS digital media receiver in your dash, you have options, and lots of them. You'll get built-in Bluetoothand reg; connectivity, a USB port, and an aux input, plus you can use a compatible iPhoneand reg; or Androidand trade; phone to control whatever the receiver's doing. And if you're a big-time Amazon Alexa user, you'll be able to call on your favorite voice-controlled assistant in the car. You can even add a satellite radio tuner (sold separately) and expand your entertainment horizons even more.

Built-in Amazon Alexa

After you load the Alexa app onto your phone and pair your phone to this JVC receiver, simply press the dedicated "Alexa" button on the faceplate, and you can access music, audiobooks, news, weather, traffic, and smart home controls using your voice.

Great Android compatibility

JVC's remote control app lets you use your compatible Android phone's touchscreen to control your music. With your Android phone safely attached to a mount, you can reach down and skip a track without taking your eyes off the road. Android users can access Pandoraand reg; and Spotifyand reg; through the Bluetooth connection and mdash; no wires needed. You can control your favorite stations using your voice, your phone, or the receiver itself.

Get the most from your iPhone

Theand KW-X840BTS gives you control over your iPhone with a wired connection so you can navigate your stored music with ease.

Go hands-free with Bluetooth

Automatic pairing makes it a lot easier to enjoy hands-free calling and wireless audio streaming, no matter what kind of phone you're using. You can also pair two phones at once, so you don't have to choose between the personal phone and the work phone when you're driving.

Add on satellite radio

Start enjoying the wide variety of music, sports, news, and entertainment by adding an optionaland SiriusXMand reg; tunerand (sold separately) to your KW-X840BTS. With coast to coast coverage, you'll never have to stop enjoyingand your favorite channels.

Colorful choices

The KW-X840BTS plays MP3, WMA, AAC, WAV, and even high-resolution FLAC files, and you'll find a wide array of sound-shaping tools, including Space Enhancement to match the sound to the size of your car, and a 13-band graphic equalizer. The variable-color display lets you choose the look you like, and you can assign different colors to two zones.

Bluetooth note:and Use of this receiver's Bluetooth features will depend upon your phone's Bluetooth capabilities.

Product highlights:

    General Features:
    • digital media receiver with AM/FM tunerand (does not play CDs)
    • built-in Bluetooth for audio streaming and hands-free calling (mic included)
    • full-time Bluetooth connection for two phones
    • use JVC's remote control app to control the receiver with your phone
    • 1.5-line display
    • plays MP3, WMA, AAC, WAV, and FLAC files through USB
    • menus can be displayed in English and Spanish
    • 2-zone variable color button illumination with 2-line display
    Smartphone Features:
    • built-in iPhone control
    • built-in Amazon Alexa
    • Siri Eyes-Free-Mode for iPhone
    • control PANDORA and Spotify from select smartphones
    • Android app for gesture control over playback
    Audio Features:
    • 24-bit digital-to-analog converter
    • high-and low-pass filters
    • sound-shaping tools get more out of your music files
    • JVC Streaming DJ lets you pair up to 5 smartphones via Bluetooth for music playback
    • 13-band EQ and time alignment
    • Volume Link EQ boosts specific frequencies to compensate for road noise
    • K2 technology improves the sound of all music sources
    • compatible with SiriusXM satellite radio tuner (sold separately, subscription required)
    • inputs: front USB port (1.5A), front auxiliary input
    • outputs: 6-channel preamp outputs (2.5-volt front, rear, sub)
    Other Info:
    • built-in amplifier (22 watts RMS/50 peak x 4 channels)
    • compatible with most factory steering wheel audio controls (adapter required)
    • front USB 1.5A connection charges devices quickly
    • warranty: 2 years (1 year for Canada)
    • MFR # KW-X840BTS

    What's in the box:

    • Digital media receiver (10A fuse)
    • Wiring harness
    • Microphone w/ bracket (attached 10' cable terminated by a right-angle mono 3.5mm connector)
    • 8 Pan-head ISO-mount screws (M5 x 8mm)
    • 8 Counter-sunk ISO-mount screws (M5 x 6mm)
    • Instruction Manual
    • Warranty Information
    • Software License Agreement

    Features and amp; specs

    AUX Input Front
    Audio/video Input ---
    USB Input Front
    Backup Camera Input No
    Second Camera Input No
    CarPlay No
    Android Auto No
    Siri Control Yes
    Alexa Voice Control Y
    Android Control Yes
    Memory Card Slot USB memory
    Bluetooth Compatible Built-in
    Satellite Radio Ready SiriusXM 2.0
    HD Radio No
    Navigation ---
    iPod Compatibility
    Full size No
    Nano No
    Touch 6 and newer
    iPhone 5S and newer
    RMS Power (CTA-2006) N/A
    RMS Power (Manufacturer) 22 watts
    Peak Output 50 watts
    RMS Power Bandwidth 20-20kHz
    Preamp Outputs 6-channel
    Sub Preamp Outputs Yes
    Switchable Rear Preamp Outputs No
    Video Screen No
    Navigation App Compatible (iOS)
    Navigation App Compatible (Android)
    Preamp Voltage 2.5 volts
    Screen Size ---
    Display Color White
    Key Button Color Variable
    EQ Bands 13
    Wireless Remote Optional
    Steering Wheel Control Compatible Adapter required
    Parts Warranty 1 Year
    Labor Warranty 1 Year
    FM Sensitivity 8.2 dBf
    European Tuning Yes
    Seek/Scan Seek
    Radio Data System Yes
    File Playback
    Music File Playback MP3,WMA,AAC,WAV,FLAC
    High-res Playback FLAC (96kHz)
    Second Camera Input Lane Watch N

    Fast Efficient Shipping

    Through our distribution network Deliveries can be as fast as Next Day Delivery.
    Delivery times vary by destination, tracking information is provided with every purchase.

    Get it Installed

    JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
    We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

    * Extend your products Manufacturer Warranty

    All products include a manufacturer warranty, but you can extend this warranty with
    JB's Purchase Protection Plan
    *Available on select products.



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