Just Wireless 20088 Wireless Hands Free Bluetooth FM Transmitter User Guide

Just Wireless 20088 Wireless Hands Free Bluetooth FM Transmitter

Product Information

Specifications

• USB Audio port (can also slow charge)
• USB-C Charging port (12W)
• USB-A High Power Port (18W)
• LED Display
• Microphone (Noise cancelling)
• Bass Boost button
• Previous track / Frequency adjust (down)
• Multi-function Knob (Press / Rotate)
• Next track / Frequency adjust (up)

Product Usage Instructions

Getting Started

1. Plug the FM transmitter into your vehicle’s power port. Your vehicle’s battery voltage will flash on screen, a three-digit number from 5 to 25.
2. If flashes continuously, your FM Transmitter is ready to pair with your Bluetooth device. Follow the steps in Pairing your Bluetooth device.
3. Once the screen displays a fixed number, your device is ready and transmitting to the displayed frequency, e.g.: 103.5.

Pairing Your Bluetooth Device

1. While the FM transmitter flashes on screen, go to your device’s Bluetooth settings and choose Just Wireless from the discovered devices list. If prompted for a password or PIN, enter 0000.
2. You should see a fixed number displayed on the screen. Your FM transmitter is connected and transmitting to the displayed frequency, e.g.: 103.5.
3. To pair a different device, go to your connected device Bluetooth settings, choose Just Wireless, and then Forget this device. The FM Transmitter will flash continuously. Go to Step 1 to connect your new device.

Transmitting to Your Radio

1. On your car’s radio, find an unused FM radio frequency (one with noise and no other sounds to avoid interference).
2. Adjust the transmission frequency on your FM transmitter. Long press the knob until the numbers on screen begin flashing. Adjust the FM frequency by rotating the knob or pressing the arrows and . Press the knob one more time to confirm your selection.
3. Ensure that your USB memory is formatted correctly (FAT/FAT32) and that your audio files are supported (MP3/WMA/WAV/APE/FLAC).

Operating Instructions

Phone Call Mode

• Answer / End : Press Knob
• Redial: Press Knob Twice
• Switch between calls : Long Press Knob
• New Call : Use your phone to dial
• Call Volume : Rotate Knob left or right

Bluetooth Music Streaming Mode

• Start Playing: Start playing music on your Bluetooth device
• Play / Pause : Press Knob
• Next / Previous Track: Press or to skip tracks
• Volume: Rotate Knob left or right

USB Memory Playback Mode

• Play / Pause: Press Knob
• Next / Previous Track: Press or to skip tracks
• Volume: Rotate Knob left or right

General Information

• Bass Boost : Press Bass button , b0 = OFF, b1 = ON
• Flashing : Device ready to pair using Bluetooth
• Flashing number: E.g.:1 0 6 .2

FAQ

• Q: What are the supported audio file formats?
  A: The FM transmitter supports MP3, WMA, WAV, APE, and FLAC audio file formats.

• Q: How do I pair a new Bluetooth device?
  A: To pair a new Bluetooth device, go to your connected device’s Bluetooth settings, choose Just Wireless, and then Forget this device. The FM Transmitter will flash continuously. Go back to Step 1 in the Pairing Your Bluetooth Device section to connect your new device.

• Q: How do I adjust the transmission frequency?
  A: Long press the knob until the numbers on the screen begin flashing. Adjust the FM frequency by rotating the knob or pressing the arrows and . Press the knob one more time to confirm your selection.

SAFETY INSTRUCTIONS

Please read all safety warnings carefully before using this product. Improper use of this product may result in damage to this or attached products.

DO NOT DISASSEMBLE and DO NOT USE if

• Moist, wet or underwater
• Near high heat or under high temperatures
• Under direct sun light
• If the product is broken or damaged

PACKAGE CONTENTS

1. Bluetooth FM Transmitter (20088)
2. User Guide

SPECIFICATIONS

• Model/SKU : 20088
• Bluetooth JL chipset : version 5.3
• Support protocol : AVRCP, HFP, A2DP
• Frequency range: 87.5-108.0MHZ
• Bluetooth range: 32 feet / 10 meters (max)
• FM Transmission range : 6 feet (max)
• USB File formats : MP3 / WMA / WAV / APE / FLAC
• Charging ports (30W Total)
• USB-A High Power Port (18W Max)
• USB-C® Charging Port (12W Max)
• Low battery voltage alert
• Equalizer: Bass Boost function
• Display : Red LED
• Material : ABS + PC
• Product dimensions: 83.6 48.5 48.5 mm
• Weight : 41.2G

FEATURES

• Bluetooth Hands-Free Phone Calls
• Bluetooth Music Streaming from Your Phone
• Seamless Switching between Calls and Music
• Multi-Function Button for Enhanced Driving Safety
• Noise Cancelling Microphone for Premium Clarity
• Large USB Capacity (Up to 64GB)
• USB-C Charging Port (12W)
• USB High Power Charging Port (18W)
• Car Battery Voltage Detection
• Over-Current, Short-Circuit, Over-Temperature, and Over-Voltage Protection.

WARRANTY & SUPPORT

This product is covered by our Lifetime Warranty. Please visit JustWireless.com for support.

LEGAL REQUIREMENTS

• USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum.
• Bluetooth and associated product marks are the trademarks of an independently owned and operated company. This product has not been licensed by this company.
• www.JustWireless.com
• 140 58th St., Brooklyn, NY 11220
• © 2023 Just Wireless
• SKU 20088 REV042023

YOUR FM TRANSMITTER
Review your device buttons layout and functionality.

1. USB Audio port (can also slow charge)
2. USB-C Charging port (12W)
3. USB-A High Power Port (18W)
4. LED Display
5. Microphone (Noise cancelling)
6. Bass Boost button
7. Previous track / Frequency adjust (down)
8. Multi-function Knob (Press / Rotate)
9. Next track / Frequency adjust (up)

GETTING STARTED

1. Plug the FM transmitter into your vehicle’s power port. Your vehicle’s battery voltage will flash on screen, a a three digit number from 5 to 25.
2. If “ ” flashes continuously, your FM Transmitter is ready to pair with your Bluetooth device. Follow the steps in “Pairing your Bluetooth device.”
3. Once the screen displays a fixed number, your device is ready and transmitting to the displayed frequency, e.g.:103.5

PAIRING YOUR BLUETOOTH DEVICE

1. While the FM transmitter flashes “ ” on screen, go to your device’s Bluetooth settings and choose “Just Wireless” from the discovered devices list. If prompted for a password or PIN, enter “0000”.
2. You should see a fixed number displayed on the screen. Your FM transmitter is connected and transmitting to the displayed frequency, e.g.:103.5.
3. To pair a different device, go to your connected device Bluetooth settings, choose “Just Wireless” and then “Forget this device”. The FM Transmitter will flash “ ” continuously. Go to Step 1 to connect your new device.

TRANSMITTING TO YOUR RADIO

1. On your car’s radio, find an unused FM radio frequency (one with noise and no other sounds to avoid interference).
2. Adjust the transmission frequency on your FM transmitter. Long press the knob ➑ until the numbers on screen begin flashing. Adjust the FM frequency by rotating the knob ➑ or pressing the arrows ➐ and . Press the knob ➑ one more time to confirm your selection.

PLAYING FROM USB MEMORY

Insert your USB drive on the left USB port ➊. The music will start playing automatically.
If your music does not play, check your USB memory is formatted correctly (FAT/FAT32) and that your audio files are supported (MP3/WMA/WAV/APE/FLAC).

OPERATING INSTRUCTIONS

Notes

• Page 1 Backside = Page 8
• Page 4 Backside = Page 5

Approval

References

• Just Wireless
• Just Wireless

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