JOYROOM JR-CB3 2 in 1 Wireless Transmitter/Receiver User Manual
- June 3, 2024
- Joyroom
Table of Contents
JOYROOM JR-CB3 2 in 1 Wireless Transmitter/Receiver
Basic parameters
- Name: Wireless Receiver
- Model: JR-CB3
- BT version: V53
- Audio decoding: SBC
- Supported protocols HSP, HFP,A2DP, AVRCP
- Supported modes: BT, TF card
- Transmission range: s12m
- Frequency response range: 20Hz-20kHz
- Mic sensitivity: 3812dB
- Product input: 5V= A
- Input port: USB+AUJX
- Product size: 405 mmx 45,7 mmx11,4 mm
- Product material: ABS+PC
- Net weight: 40 g
Packing list
Product diagram
Pairing operation
- Insert the USB connector of the receiver into a power supply., the light ring will light up which means the receiver is turned on.
- Plug the 3.5mm audio cable of the receiver into the 3.5 mm port of the car audio system.
- Turn the phone’s BT function on, search for the BT device “JR-CB3, click to pair and connect with it.
- After connecting successfully, you can start to use the receiver to enjoy music or answer calls.
Operation instructions
Turn on/off
Music function
- Play/Pause: Click the pause play button
- Volume up: Click the volume up button
- Volume down: Click the volume down button
- Previous: Click the previous button
- Next: Click the next button
Voice assistant
- Press and hold the call button for 25, and then release after hearing a “di-di” sound.
Call function
- Answer call: Click the call button
- Reject call: Press and hold the call button for 2s
- End call: Click the call button
- Redial last number: Double-click the call button
Factory reset
- Restore factory settings: Under turned on status, press and hold the +andbuttons simultaneously for 5s.
Indicator instructions
Prompt tone instructions
FAQ
-
Why cant the receiver be connected?
- A: it may be that the receiver has been connected to another device (such as a computer or mobile phone) Please disconnect it from the device and make a reconnection.
- Since the iP phone’s BT has no automatic refresh function, you can click ‘JR-CB3″ manually on the BT interface.
if the above operations failed, you can restore the receiver to factory settings.
-
Why is the sound of the receiver too low?
- if you are an Android user, it may be that the playback
- A: channel of the mobile phone is not turned on. Please turn your phone’s BT function on, and click the icon on the right side of the connected earphones to turn on the “media channel and call channel”
- If you are an iP user, please open your phone’s “Settings” interface, and check if there is a maximum volume limit on the phone.
Due to the different operating systems of different phones, the volume of the receiver may not be synchronized with the volume of the phone audio. Please manually volume up the mobile phone, the receiver and the car audio respectively.
-
Why can’t the receiver be turned on when connected with power?
- A: The USB charging port and cable may not be connected properly, please pull the cable out and plug it in again repeatedly to make sure it is well inserted.
- Please use adapters or car chargers that conform to national/regional safety standards to supply power for the product Adapters with excessive power may be incompatible.
- The product does not support PD protocol, when using PD power adapters to supply power for the product, it may be incompatible.
Safety Criterion
- Please follow the instructions, do not disassemble the product or refit it for any reason, otherwise, it may break down or burn down.
- Do not immerse it in any liquid or wash it with water.
- Please use adapters that conform to nationalfegional safety standards together with the included charging cable to charge the product, otherwise its battery may be damaged or cause safety problems.
- Please use and store it in normal temperatures; too low or too high temperature (below or above 45 C) is not permitted.
- Do not block the openings of the product, such as the charging port, audio port and microphone, etc.
- Do not use it under thunderstorms which may lead to abnormal performance and signal interruption.
Warranty Card
- User Name: …………………………………………………….
- User Tel: …………………………………………………….
- User address (with postcode): …………………………………………………….
- Purchase date: …………………………………………………….
- Invoice No: …………………………………………………….
- Dealer Name: …………………………………………………….
- Dealer Address (with postcode): …………………………………………………….
- Dealer Tel: …………………………………………………….
Warranty
- If there is a performance failure on this product and it’s not caused by human or damage, we will provide a 2-month free warranty service for consumers from the date of purchase.
Warranty Exceptions
- Human damage;
- Beyond the warranty period;
- Failure to provide a valid purchase certificate;
- Product damage caused by failure to follow the use, maintain and preserve instructions
- Product damage caused dismantle it or repairing the product without authorization, or immerse the product in water,
- Damage caused by other force majeure.
FCC Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference.
- this device must accept any interference received, including interference that may cause undesired operation.
RF Exposure Information
Caution: Any changes or modifications to this device not explicitly approved by the manufacturer could void your authority to operate this equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and the receiver.
- Connect the equipment into an outlet on a circuit diferent from that to which the receiver is conneded.
- Consult the dealer or an experienced radio/TV technician for help.
The device has been evaluated to meet general RF exposure requirements. This equipment should be installed and operated with a minimum distance of between the radiator & your body.
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