KW-AVX648 / KW-AVX646 / KW-AVX642T / KW-AVX640 KW-HDR720 / KD-HDR70 / KD-AHD79 / KD-HDR44 KD-DB56 / KD-DB52 / KD-DB42 KD-R628 / KD-R626 / KD-A625 / KD-R621 / KD-R620 KD-R528 / KD-R527 / KD-R526 / KD-R525 / KD-A525 KD-R524 / KD-R521 / KD-R520 / KD-BTP52 / KD-BTP50 KD-R429 / KD-R428 / KD-R427 / KD-R426 / KD-R425 KD-R424 / KD-R423 / KD-R422 / KD-R421 / KD-R420 KD-R47 / KD-R45 / KD-R42BP / KD-R329 / KD-R328 KD-R327 / KD-R326 / KD-R325 / KD-R324 / KD-R322 KD-R321 / KD-R320 / KD-BTP30 / KD-R223 Bluetooth Adapter KS-BTA100

	: Usable
*1	: Usable, but not stable.
*2	: Cannot return to HFP after switching to private mode.
*3	: Noise may occur during a voice call
*4	: Cannot reject an incoming call.
NG	: Function available on the mobile phone but cannot be used.
	: Function unavailable on the mobile phone.

The following is a list of things you should know including various potential issues when using Bluetooth functions. Be sure to read it.

General

• Since Bluetooth is a wireless communication, there may be cases where normal communication is not available depending on signal quality.
• Mobile phone models listed here have been tested and proven compatible by JVC as of Dec, 2010. If any modification has been applied to the mobile phone after our test, available functions may be different from the content listed here.
• Compatibility status shown above is applicable to the unit that we have used for the test. This does not guarantee that all units of the same mobile phone model will offer the same result.
• Some functions may require operations from the mobile phone. Refer to the mobile phone's instructions for details.
• Model names or model numbers are trademarks or registered trademarks of their respective holders.
• Connection with a PC is not supported.
• Depending on the setting or status of the connected mobile phone, some functions may not work properly. For example on certain mobile phones, making a call via JVC unit is possible only while the mobile phone's display is showing the standby screen.
• All functions related to Bluetooth depends on the version of JVC unit, the software version of the mobile phone connected with JVC head unit, and the applications installed in the mobile phone.

Pairing

• The JVC unit may not be able to be located depending on the signal condition quality or mobile phone setup.
• While establishing Bluetooth connection with one mobile phone, a pairing with another mobile phone may fail. In this case, try again after disconnecting.
• The pairing and connection process depends on the mobile phone. Please check the operation of your mobile phone in advance.

Connection

• If the Pairing process has been completed and you are still not able to connect, please try to connect by pushing the “TEL Ebutton on the JVC unit.

Dialing, Receiving (HFP)

• Noise or loud echo may occur during a voice call.
• On certain mobile phones, Switching Conversation on HFP (between head unit and mobile phone) may not work properly or noise may occur when switching.
• A JVC head unit and certain mobile phones may not always match up properly (e.g. mobile phone doesn't end the phone call even if the JVC head unit ends the display of call function, etc.).
• Call-waiting is not supported.
• Some mobile phones can not reject an incoming call because the mobile phone does not support this function.

Ring Tone in Phone

• The ring tone that is heard when receiving a call may not necessarily be identical to that set on the mobile phone.

Voice Recognition

• There may be cases where voices cannot be recognized easily or operation is not stable depending on the mobile phone model or environment in the car.
  If it is difficult to recognize your voice keyword, you can control mic input level or noise/echo cancel setting on the receiver to improve.
• On certain mobile phones, the status of Voice Recognition between JVC head units and mobile phones may not always match up properly.

Audio (A2DP, AVRCP)

• Sound may be interrupted or playback speed may vary.
  For example, during music streaming, the sound may be interrupted while HFP is connecting/disconnecting, or auto connect is active.
• Some mobile phones compatible with HFP only may stream music data. In this case, the sound quality will be low.
• Some mobile phones may stream the key operation sound via HFP. In this case, this sound may interrupt music streaming.
• When starting and ending the call, music or noise may be heard for a moment if music streaming is active in the background.
• During music streaming, the Key/Play Mode Controls or Displays related to AVRCP may not function as they should depending on the device.
• During Bluetooth audio playback, when the sound is interrupted by a call reception, call making, or voice recognition operation, playback may not resume automatically even after interruption ends.
• There may be cases where sound cannot be played from the JVC head unit even though the music is being played back on the mobile phone.
• To prevent distortion or static noise, adjust the volume level on the wirelessly connected device before use.