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Small black Bluetooth 5.3 receiver box with RCA, 3.5mm and optical ports

AUTYUE

AUTYUE C36 Bluetooth 5.3 Receiver RCA AUX Optical USB

SKU CH-YKBP-TRPPK

Bluetooth 5.3 receiver adds wireless streaming to any speaker system via RCA, 3.5 mm, optical or USB with near-zero latency

  • TypeBluetooth Adapter
  • Bluetooth 5.3 delivers clear, low-latency streaming
  • RCA, 3.5 mm and optical outputs fit 99% of systems
  • USB drive playback adds music without a phone
  • Simple three-step pairing gets you listening fast
  • Type-C power keeps the receiver running reliably

Bluetooth 5.3 audio receiver for wired stereos

The AUTYUE C36 is a Bluetooth 5.3 receiver that adds wireless streaming to any speaker system with RCA, 3.5 mm or optical inputs. It receives audio from phones, tablets or computers and outputs it through the connected wired equipment. A USB port also allows direct playback from a flash drive. This unit is a receiver only and cannot transmit audio to Bluetooth headphones or speakers.

Wireless range and codec limits of Bluetooth 5.3

Bluetooth 5.3 provides a stable connection for high-definition audio streaming with very low latency, but the practical range depends on walls and interference. The adapter supports the codecs built into the 5.3 specification; it does not add proprietary high-bitrate codecs that are not part of the standard. Audio quality will be limited by the source device's Bluetooth implementation and the wired amplifier's own performance.

Check inputs and power before ordering

Verify that your stereo, AV receiver or car system has a free RCA, 3.5 mm auxiliary or optical digital input. The C36 requires a USB-C power source, so a nearby USB charger or powered port is necessary. If your system only accepts speaker-level signals or lacks any of the listed inputs, this adapter will not connect. It also does not function as a Bluetooth transmitter for wireless headphones.

Highlights

  • Bluetooth 5.3 delivers clear, low-latency streaming
  • RCA, 3.5 mm and optical outputs fit 99% of systems
  • USB drive playback adds music without a phone
  • Simple three-step pairing gets you listening fast
  • Type-C power keeps the receiver running reliably

Specifications

BrandAUTYUE
ModelC36#Q2506_B
TypeBluetooth Adapter

Questions about this item

Should I choose the version that uses RCA, 3.5 mm or optical for my stereo?

The C36 provides all three outputs simultaneously, so you can connect whichever cable matches your amplifier or speaker inputs without selecting a specific model variant.

What does Bluetooth 5.3 actually deliver when I stream music to my old hi-fi?

Bluetooth 5.3 gives a more stable connection and supports modern codecs for clearer, low-latency audio, so music plays with virtually no lag or drop-outs on your wired system.

Does the optical output cap the audio quality compared with the analogue jacks?

The optical port carries a digital signal that bypasses the adapter’s internal DAC, while the RCA and 3.5 mm jacks use its built-in conversion; both paths support the same Bluetooth 5.3 stream quality.

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