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Small black rectangular Bluetooth adapter with 3.5mm plug and single button

Scosche C28 Bluetooth 5.0 Transmitter Receiver car electronics accessory

SKU CH-RGNJ-2PE8V MPN C28

Plugs into any 3.5 mm aux jack and adds Bluetooth 5.0 wireless audio in transmitter or receiver mode with a built-in mic and rechargeable battery

  • Typecar
  • FeaturesTransmitter/Receiver, Built-In Microphone, Rechargeable batt
  • Height22 L x 12 W x 60 H millimeters
  • Width60 L x 22 W x 12 H millimeters
  • Length60 L x 22 W x 12 H millimeters
  • Weight0.04 kilograms
  • Plug into any 3.5mm aux jack and stream wirelessly via Bluetooth 5.0
  • One button switches between transmitter and receiver modes with no app needed
  • Built-in microphone enables hands-free calls through car stereo or headphones
  • Rechargeable battery delivers up to 6 hours of play per charge
  • Stable connection up to 10 metres with 5-second reset if pairing drops

Plug-and-play wireless audio adapter

The Scosche C28 adds Bluetooth 5.0 to any device with a 3.5mm aux jack. One button toggles between transmitter and receiver modes without an app or pairing codes. It suits drivers of pre-2015 vehicles, turntable listeners and anyone who wants wireless headphones for a TV or projector. The built-in microphone enables hands-free calls when used in a car.

Dual TX and RX modes over 3.5mm aux

In receiver mode the C28 streams music, navigation and calls from a phone to a car stereo or wired speaker. In transmitter mode it sends audio from a TV, turntable or projector to Bluetooth headphones or a speaker. Both directions use the same 3.5mm connection and pair in seconds. No other interfaces or cables are required.

Up to six hours per charge with LED status

The rechargeable battery runs for six hours and refills in two hours via USB at 5 volts. A red and blue LED shows the remaining level. Stable range reaches 10 metres or 33 feet in open space. Noise cancellation helps keep calls clear. The adapter weighs 0.04 kilograms and measures 60 by 22 by 12 millimetres.

Highlights

  • Plug into any 3.5mm aux jack and stream wirelessly via Bluetooth 5.0
  • One button switches between transmitter and receiver modes with no app needed
  • Built-in microphone enables hands-free calls through car stereo or headphones
  • Rechargeable battery delivers up to 6 hours of play per charge
  • Stable connection up to 10 metres with 5-second reset if pairing drops

Specifications

BrandScosche
ModelC28
Typecar
FeaturesTransmitter/Receiver, Built-In Microphone, Rechargeable battery, Noise Cancellation, Hands-Free Calls
Height22 L x 12 W x 60 H millimeters
Width60 L x 22 W x 12 H millimeters
Length60 L x 22 W x 12 H millimeters
Weight0.04 kilograms
Labor1 Year
Parts1 Year
Adjustable Subsonic FilterTransmitter/Receiver, Built-In Microphone, Rechargeable battery, Noise Cancellation
CableFemale-to-Female
ChannelsStereo
ColorBlack
CurrentPortable, 5 volts_of_direct_current
Cut Out DiameterMini
Hardware Includedfalse, true
Head Unit SizeSingle DIN
Inner Hole Diameter for WireMini
InputsAux port
Max Recommended Power HandlingSamsung Galaxy S8/S8 Plus, Google Nexus 6P, Nintendo Switch, Sony XZ2, Apple iPhone 5S, Apple iPhone 8, Google Nexus 6, Apple iPhone 6 Plus, Apple iPhone 5c, Apple iPhone SE
Number of Links to Amplifier1
OutputsHeadphones Wireless Earbuds In-Ear Headphones Over-Ear Headphones Speakers Bluetooth Speakers Portable Speakers Home Stereo Receivers AV Receivers Car Audio Systems Soundbars AirPods AirPods Pro AirPods Max JBL Bluetooth Speakers Bose Bluetooth Headphones Sony Bluetooth Headphones Beats Headphones
PowerBattery Powered
Screen SizePortable
Size/Dimensions60 mm x 22 mm x 12 mm
Test DescriptionTransmitter/Receiver, Built-In Microphone, Rechargeable battery, Noise Cancellation, Avoid extreme temperatures, Potential interference with other wireless devices
Voltage5 volts_of_direct_current

Questions about this item

How does Bluetooth 5.0 range hold up inside a car or living room?

The link stays stable up to 10 metres (33 ft) in open space; walls and seats reduce that, but typical car or room distances remain well within reliable coverage.

What does the 3.5 mm aux connection actually limit for audio quality?

The analogue aux jack caps the signal to stereo line-level output, so quality depends on the source device's DAC and the headphone or speaker amp, not on the Bluetooth codec.

Will the 60 mm height clear the dashboard trim around my aux port?

At 60 mm tall, 22 mm wide and 12 mm deep, the adapter fits most recessed aux sockets; very tight surrounds may need a short 3.5 mm extension cable.

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