RoadKing RKING4000 User manual

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RKING4000
Premium Convertible
Bluetooth®Headset
User Manual

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Contents:
Product Overview ------------------------------------------------------------- 3
Basic Operation --------------------------------------------------------------- 4
Bluetooth Pairing and Connection ------------------------------------------- 5
Connection with Two Devices ------------------------------------------------ 6
LED Indicator ------------------------------------------------------------------ 7
Charging ----------------------------------------------------------------------- 8
Headset Voice Confirmation -------------------------------------------------- 9
Product Specifications -------------------------------------------------------- 10
Notes and Q & A -------------------------------------------------------------- 11

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Product Overview
Package Contents:
A. Bluetooth headset RKING4000 x 1
B. Type-C®charging cable x 1
C. User manual x 1
D. Car charger x 1
E. Sponge microphone cover x 1
F. Drawstring bag x 1

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Basic Operation
Button
Function
Operation Instructions
MFB
Power on
When the device is off, press and hold the Multi-Function Button
(MFB) for 2 seconds to power on. The power-on prompt tone is
"Power on".
Power off
When the device is on, press and hold the MFB for 3 seconds to
power off. The power-off prompt tone is "Power off".
Enter pairing mode
Turn on your phone’s Bluetooth and click "RK4000" to pair to
headset. After a few seconds, a tone will indicate that pairing was
successful. The LED turns to blue and blinks slowly (the blue light
blinks once for 10 seconds).
Play / Pause
When playing music, press the MFB to pause / play music.
Redial a call
Double-click the MFB to dial the last call.
Voice dial
Press and hold the MFB for 1 second, then release.
Audio switch
When on a call, hold down the MFB for 2 seconds to switch the
audio between the phone and Bluetooth headset.
Three-way calling
A. When an incoming call occurs during a call, press the MFB
to answer the new call and hang up the current call.
B. Double-click the MFB to answer an incoming call and put the
current call on hold.
C. Press and hold the MFB for 2 seconds to keep the current
call and reject the new call.
D. In a three-way call, double-click the multi-function key to
switch between the current call and the call on hold.
Answer a call
Click the MFB when a call is coming in.
End a call
To end a call, click the MFB.
Reject a call
To reject an incoming call, press and hold down the MFB for 1
second to reject the call.
Volume +
Volume up
When talking or playing music, click the Volume + button to
increase volume.
Next song
When playing music, press and hold the Volume + button for 1
second to skip to the next song.
Volume - Volume down
When talking or playing music, click the Volume - button to
decrease volume.

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Previous song
When playing music, press and hold the Volume - button for 1
second to skip to the previous song.
Mute Microphone mute During a call, click the Mute button to mute your microphone. Click
the Mute button again to turn off mute.

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Bluetooth Pairing and Connection
A. In off status, press and hold the Multi-Function Button (MFB) for
two seconds. After the headset is powered on, the red and blue
lights will flash alternately.
B. Turn on the Bluetooth of your mobile phone and look for "RK4000".
Once it appears, click to pair with the headset. After the connection
is successful, the LED light will turn blue and blink slowly.
C. You can use the Multi-Function Button (MFB), Volume + button, and
Volume - button on the Bluetooth headset to control phone calls,
music, volume, and more.

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Connection with Two Devices
A. The mobile phones connected to "RK4000" are divided into A
and B;
B. To connect phone A, hold down the MFB for 2 seconds to power
on the headset, light will flash red and blue alternately. Enter
pairing mode, by turning on the Bluetooth function of phone A.
Search for "RK4000" and click to connect. After the connection is
successful, turn off the Bluetooth function of phone A, and the
headset will enter the pairing state again.
C. Use phone B to pair with the headset by following the same
method as phone A. After the pairing is successful, turn on
the Bluetooth function of phone A and click "RK4000" to
connect. (Some mobile phones may have an automatic
connection function.)
Note:
Music can only be played from one phone at a time. When you want to play
music from the other phone, you will need to pause or close the music of the
previous phone. The same applies during talking status.

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LED Indicator
Mode
LED Indicator
Power on
The blue LED light flashes for 2 seconds
Power off
The red LED light flashes for 2 seconds
Pairing mode
The red & blue LED lights flash alternately
Connected standby
mode
The blue LED light flashes once every
10 seconds
Playing music
The blue LED light flashes once every
10 seconds
Talking
The blue LED light flashes once every
10 seconds
Delete paired record
The red & blue LED light lights up for
1 second
Charging
The red LED light will turn on
Full charge
The red LED light turns off, and blue LED light
turns on
Low battery
The red LED light will flash

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Charging
When the headset is low, the red light will blink. Please charge it
immediately. About 2 hours after charging, when the red light is off and
the blue light is on, the battery is fully charged.
Charge Connections
Connect to the headset through the Type-C connector of the Type-C
charging cable.
Plug the charging cable into a USB charging port, with USB head
connected to USB charger (car charger, travel charger, computer USB,
etc.)
Note:
Charge the RKING4000 at least once every two months when not in use.

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Headset Voice Confirmation
Your headset will verbally confirm these conditions:
Power on
Pairing
Paired
Your headset is connected
Your headset is disconnected
Power off
Mute on
Mute off

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Product Specifications
Bluetooth Version V5.0
Bluetooth Chipset QCC3024
Operation Range 32.8 feet
Bluetooth Protocols HSPv1.2, HFP v1.6, A2DP v1.3,
AVRCPv1.5
Charging Time About 2 hours
Talking Time About 33 hours (70% volume)
Working Time About 35 hours (70% volume)
Headset Net Weight .49 lbs
Headset Dimension 7.77" x 6.63" x 2.69"
Actual use time will differ depending on environment and music.

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Notes and Q & A
A．How to reconnect when connection fails?
Once the headset is connected to your mobile phone successfully, it will
automatically connect to your phone every time you turn on the headset. If
the connection fails, please connect to “RK4000” on your phone’s
Bluetooth again.
B. How to delete paired records?
Press the MFB and Volume – button at the same time for 5 seconds to
clear the pairing record in the headset. If the pairing record is cleared,
the connection cannot be called back, and you will need to re-pair the
device.
C. What’s the password for pairing?
Some connection devices require a password for pairing. Please try 0000,
8888, 1111, or 1234.
D. What devices can you use to charge the headset?
As long as the DC voltage meets a 5V current above 500mA, any car
charger, travel charger, computer USB, etc., can be used to charge the
RKING4000.
E. What if you can’t power on or connect?
You can try the charging reset method by plugging in the charging cable
to charge the headset. To complete the reset, shutdown and restart the
headset. If it still cannot be used normally, contact customer service or the
manufacturer for technical support.
F. Why does the headset power off automatically?
The headset will turn off if there is no connection for over 10 minutes or
the battery voltage is less than 3.1V.
G. How does a three-way call work?
1. Press the Multi-Function Button (MFB) to answer a new call and
hang up the current call.
2. Double-click the MFB to answer the new call and put the current
call on hold.
3. Press and hold the MFB for 2 seconds to keep the current call
and reject the new call.
4. In a three-way call, double-click the MFB to switch between the
current call and the call on hold.

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ONE-YEAR LIMITED WARRANTY For support, product and warranty
information, please visit www.roadprobrands.com
RoadKing®and RoadPro®are registered trademarks owned by DAS Brands,
LLC and its affiliated companies. The BLUETOOTH®word mark and logos
are registered trademarks owned by Bluetooth SIG, Inc. and any use of such
marks by DAS Companies, Inc. is under license. All other trademarks,
registered trademarks, copyrights and logos are the property of their
respective owners. ©2022 DAS Companies, Inc. and/or affiliates.