Dongguan Deruichen Electronics C87B Car Bluetooth MP3 Player FM Transmitter Owner’s Manual

June 6, 2024
Dongguan Deruichen Electronics

Owner’s Manual
C87B

Safety Instruction

Please Read this manual carefully before using it.

  • Keep following this instruction.
  • Don’t try to disassemble it by yourself.
  • Don’t exposed directly to sunlight, open flames which will cause a potential damage.
  • Keep your attention on road and do not operate this product while driving.

Introduction

Features :

  • Input 12V-24V
  • FM transmitter: 88.0-108.0MHz frequency range
  • Bluetooth hands-free call
  • Streaming music from smartphone to car audio system via FM transmitting
  • Type-C: PD 18W
  • Support USB flash drive playing
  • Support TF card playing
  • Car battery monitor

Here it is:

1QC3.0 charging interface
2. Type-C charging interface
3. LED display
4. Ambient light switch
5. Microphone
6. Previous piece| 7. Micro SD Port
8. Battery voltage display
9. USB interface
10. Next track
11. Multi-function key
---|---
LED Indicator| Status
---|---
| Car battery voltage
| C87B Bluetooth ready to pair
| FM transmitting frequency

Get it ready for playing

  1. Plug C87B into your car cigarette lighter socket.

  2. LED display light on, it will shows:

  3. Bluetooth connect:
    After LED displays “ ”, means it is ready to pair with a voice prompt:“ Waiting for connection”. On your smartphone, enable Bluetooth function, search available devices, select “C87B” and pair with it. Once connected, there is a voice prompt:“ Bluetooth connection success”.

  4. Turn on FM on your car radio, and find a vacant (unoccupied) channel. Then go to adjust the frequency on C87B to match the frequency on your car radio.

  5. Adjust the FM transmitter frequency Press and hold multifunction knob button until the frequency display flickering, rotate the knob button to adjust the FM transmitting frequency to be as same as frequency on your car radio.

Play music

Play music on your phone:
After step 1-5, you can start playing on your smartphone, the music will streaming by Bluetooth A2DP function , from your phone via FM transmitting to car radio, and come out from car stereo system.

Play / Pause Press
Previous / Next track Press
Volume rotate

Play music from USB flash drive:
Plug USB flash drive into the right USB port with “ ” icon. C87B will start to recognize and play automatically.

Play/pause Press
Previous / Next track Press
USB flash drive ready to play

(when you plug in a USB flash drive)
| TF card ready to play
(when you insert a TF card )
| Song 001 playing
Volume( )| rotate

Play music from TF card:
Insert TF card to TF card slot, C87B will start to recognize it with display “ ” and start playing automatically. All operations are same as USB flash drive playing mode.

How to switch playing among

Press “ ” and hold until LED displays  bt or (or ), then playing will transfer to mode which it shows.

Atmosphere lamp key ( )
Short press this key to switch the seven monochromatic color light and off the light, long press this key to automatically change the light

Hands-Free Call

After you get ready for playing, you can also start to use hands-free function.

Answer a incoming call Press
Reject a incoming call Press and hold
Hang up a calling Press
Recall last incoming/outgoing call Quickly press twice

Under music playing status( flash drive), if there is a call coming in, it will switch to call mode automatically, after hung up, it will switch back to playing mode automatically.

Charge Your device

  • QC3.0″  5V/2.4A 9V/2A 12V/1.5A charging port
  • Type-C PD 18W Support PD3.0/ QC3.0 / QC2.0/FCP/AFC/Apple2.4A/BC1.2

Specification

DC input : 12V-24V
Total Output: 36W
Bluetooth V5.0
Bluetooth connect distance: 10m
Audio format: MP3, WMA, FLAC, WAV
FM transmitting distance: 22M
USB capacity support : < 64GB
Working temperature range: -20 °C to 40°C
Storage temperature range : -40 °C to 75 °C

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation
NOTE: 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 receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

Warning: changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment

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