JVC – KW-X840BTS

Amazon Alexa Compatible New

You can talk to Amazon Alexa on your JVC receiver. With Alexa built-in, you can ask to play music, place calls, listen to audiobooks, hear the news, check the weather, control smart home devices, get directions, find parking, and more – all while you keep your hands on the wheel and eyes on the road.

Using Alexa is simple – just install the Amazon Alexa companion app (free) on your iPhone or smartphone (Android™) and press the Amazon Alexa key on the JVC receiver, you can easily activate Alexa and get voice control.

Amazon Alexa Key
Bluetooth® Control

Audio Streaming & Control (A2DP, AVRCP)
With built-in Bluetooth audio, you can listen to and control songs stored on your iPhone or Android smartphone – all wirelessly. Extra high-quality playback can also be achieved with FLAC compatibility that allows digital audio to be compressed in a lossless format. In addition to repeat and random playback of music files, you can also easily search for songs using the browsing function. Just look for and choose the song you want to hear from the folder name and song name lists.

JVC Streaming DJ

Connect up to 5 Bluetooth devices simultaneously, allowing you and your friends to take turns streaming music like a DJ. Move to the groove and get the party pumping to the max.

2 Phones Full-Time Connection

You can connect two phones full time via Bluetooth, with secure and simple pairing. Calls to either phone can be received by a push of a key on the receiver.

Bluetooth Hands-Free Profile 1.7

HFP 1.7 Wideband Speech is supported, allowing you to enjoy hands-free phoning convenience together with higher voice quality and improved noise reduction.

iPhone® Bluetooth Automatic Pairing

Just connect your iPhone via USB and the automatic Bluetooth pairing function will work to complete the pairing. No complicated manual procedure to worry about.

Low Battery Information

When the battery of the connected Bluetooth device runs low, a beep sound is heard and “LOW BATTERY” appears on the receiver.

Display

2-Line VA LCD Display
Equipped with VA (Vertical Alignment) LCD panels that offer a broader angle of view and better visibility. The 2-line display provides more information with animation effects.

2-Zone Variable-Color Illumination

You can mix the front panel illumination into 2 separate color zones. 50 preset patterns (49 colors + 1 user color preset) are available for easy customization. In addition, manual setting is possible to set each RGB color by 32 steps, providing a total of 32,768 different colors for each zone, 1 and 2, to match your preferences. You can even enjoy moving illumination, selectable from 10 color animation patterns.

Music Sync. Effect

Changes illumination patterns according to the rhythm of the music. Illumination key colors can be preset the way you like.
Spanish Text Display Compatible
On-screen display menu now available in Spanish.

Internet Radio/Digital Radio

Pandora / Spotify Control (Android/iPhone)
Listen to Pandora and Spotify from your smartphone with smooth control on the receiver via USB or Bluetooth connection for iPhone, and via Bluetooth for Android devices.

Ready for SiriusXM Radio

(optional SiriusXM tuner required, sold separately)
Ready for SiriusXM Radio. You can listen to over 100 Channels of music, sports, and entertainment.

USB

High Current 1.5A Charging
Rapidly charge your smartphone using the USB port, with up to a maximum of 1.5A.
Sound Optimization

K2 Technology for Enhanced Digital Sound Quality

K2 is a JVC original technology that reproduces the original master sound by expanding the frequency range. For example, K2 will expand the digital data of the audio CD recorded at 44.1kHz to 192 kHz. It is also possible to recreate the high-frequency range above 20kHz that is cut during the CD formatting.

Time Alignment

By selecting the speaker type and the distance to the center of the listening position, the receiver will automatically adjust the timing of the sound output from each of the speakers so that the sound from each of the speakers will arrive exactly at the same time to the listening position.

Space Enhancement

Space Enhancement is a virtual surround technology using 2 speakers. Simply select the vehicle size, and the receiver automatically adjusts the sound effectively.

Sound Response

This function boosts the low frequencies which can be lost during compression to MP3 or AAC.

Sound Lift

Virtually manipulate the height of the speakers by adjusting the sound frequencies.

Volume Link EQ

Volume Link EQ boosts specific frequencies in the audio signal to compensate for the impact of road noise. It boosts frequencies in the music that are affected by road noise.

13-Band Equalizer

Use the 13-Band Equalizer to manually adjust the sound to your taste.
General
Remote Control App
Control the receiver’s source directly from the smartphone using simple finger gestures with “JVC Remote” app* (now available for both iOS and Android). You can even customize your audio setting, and see detailed source information such as song title, artist name and album art etc. from the smartphone.

Remote Control (Optional)

Remote control (RM-RK52) is optionally available.

Steering Wheel Remote Control Ready

Factory steering wheel control functions can be retained with a third-party adapter (sold separately).

1 Year Warranty

Volunteer Audio is an Authorized Dealer for JVC and a full manufacturers warranty can be processed through our company.