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Small black rectangular Bluetooth 5.4 adapter with 3.5 mm jack, 2.4 by 0.87 by 0.48 inches

Scosche C28-A Bluetooth 5.4 car electronics accessory

SKU CH-HJF8-YWHT0 MPN C28-A

A 2-in-1 Bluetooth 5.4 transmitter and receiver adds wireless audio to car stereos and home systems via a 3.5 mm jack

  • Typecar
  • Height2.4 L x 0.87 W x 0.48 H inches
  • Width2.4 L x 0.87 W x 0.48 H inches
  • Length2.4 L x 0.87 W x 0.48 H inches
  • Labor1 Year
  • Parts1 Year
  • Bluetooth 5.4 gives low-latency wireless audio
  • 2-in-1 transmitter and receiver covers both streaming directions
  • 5 mm AUX connects to non-Bluetooth sources
  • Auto reconnection pairs instantly after power-on
  • Compact 2.4 × .87 × .48 in design fits tight spaces

2-in-1 Bluetooth 5.4 Adapter

This Scosche C28-A adds wireless audio to any device with a 3.5 mm auxiliary input. It operates as a transmitter for TVs or PCs and as a receiver for older car stereos or home speakers. The compact dongle suits drivers and home listeners who want cable-free streaming without replacing existing equipment.

Low-Latency Streaming and Hands-Free Calls

Bluetooth 5.4 delivers stable, low-latency audio for music and video playback. Built-in noise cancellation keeps phone conversations clear, while the integrated microphone enables hands-free calling in the car. The adapter runs on a 1.5 volt supply and reconnects automatically to the last paired device after power-on.

Plug-and-Play with Included 3.5 mm Cable

A female-to-female auxiliary cable is bundled for immediate connection to head units, amplifiers or powered speakers. The ON/OFF switch puts the unit into pairing mode at startup, so no app or driver installation is required. Buyers needing aptX codecs, multi-point pairing or a dedicated charging port will not find those features here.

Highlights

  • Bluetooth 5.4 gives low-latency wireless audio
  • 2-in-1 transmitter and receiver covers both streaming directions
  • 5 mm AUX connects to non-Bluetooth sources
  • Auto reconnection pairs instantly after power-on
  • Compact 2.4 × .87 × .48 in design fits tight spaces

Specifications

BrandScosche
ModelC28-A
Typecar
Height2.4 L x 0.87 W x 0.48 H inches
Width2.4 L x 0.87 W x 0.48 H inches
Length2.4 L x 0.87 W x 0.48 H inches
Labor1 Year
Parts1 Year
Adjustable Low PassBluetooth 5.4, Fast Charging, Low Latency, Noise Cancellation, Hands-Free Calls, Stereo music, Easy to use
Adjustable Parametric Bass EQBluetooth 5.4, Fast Charging, Low Latency, Noise Cancellation, Hands-Free Calls, Stereo music, Easy to use
CableAuxiliary, Female-to-Female
ChannelsStereo
ColorBlack
CurrentModern, 1.5 volts
Cut Out DiameterSmall
Frequency Blockednot_applicable
Hardware Includedfalse, true
Head Unit SizeSingle DIN
Inner Hole Diameter for WireSmall
InputsAUX
Max Recommended Power HandlingMP3 Player; Laptop; PC; Cars; Smartphone; Speakers; Stereo system; Television; TV; Flight TV; Headphones, Bluetooth 5.4, Fast Charging, Low Latency, Noise Cancellation, Hands-Free Calls, Stereo music, Easy to use
PowerBattery Powered
Screen SizeModern
Size/Dimensions2.4 in x 0.87 in x 0.48 in
Test DescriptionEnsure that the device and Bluetooth connection are not too far apart to avoid potential interference with other wireless devices.
Voltage1.5 volts
Sports Team1 Piece

Questions about this item

How do I plug the 3.5 mm jack into my car stereo and which mode do I select first?

Insert the 3.5 mm aux plug into the car’s auxiliary input, slide the power switch on, then choose TX to send audio from the stereo to Bluetooth headphones or RX to stream from a phone to the stereo.

What part will need replacement first with daily use?

The internal rechargeable cell will degrade after repeated charge cycles, so the whole adapter will eventually need replacing.

How long does the Bluetooth 5.4 link stay stable on a single charge during a long drive?

The adapter runs about eight hours per charge before the connection drops and it must be recharged.

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