D300 Bluetooth 5.2 APTX-HD HiFi Audio Receiver | Optical & Coaxial

Upgrade Any Speaker or Amplifier to Wireless with CD-Quality Sound

The D300 APTX-HD Bluetooth 5.2 Audio Receiver is the easiest way to add wireless Bluetooth streaming to your existing wired speakers, home amplifiers, headphones, or car stereo systems. Featuring APTX-HD high-fidelity decoding, this compact aluminum receiver delivers lossless, CD-grade audio quality — wirelessly. Simply plug it in and play. No drivers, no complicated setup.

With three output options — 3.5mm AUX, Coaxial, and Optical Fiber (Toslink) — the D300 is compatible with virtually any audio system, from vintage hi-fi amplifiers to modern home theater setups. The Bluetooth 5.2 chip ensures a stable, low-latency connection up to 15 meters (approx. 50 feet).

Made in Mainland China.

Key Features

• APTX-HD & APTX Decoding: Experience CD-level, lossless sound quality over Bluetooth — no compromise on audio fidelity
• Bluetooth 5.2 (CSR Qualcomm Chip): Stable, low-latency signal transmission with a range of up to ~15 meters
• Triple Output Interfaces: 3.5mm AUX, Coaxial, and Optical Fiber (Toslink) — one output active at a time
• Plug & Play: No drivers required — instantly adds Bluetooth to any legacy audio device
• Long Battery Life: 500mAh rechargeable battery with up to 10 hours of continuous playback
• USB-C Charging: Modern Type-C charging port for fast and convenient recharging
• Premium Aluminum Alloy Body: Durable, stylish silver-grey finish that fits seamlessly into any audio setup
• Wide Codec Support: APTX / APTX-HD / SBC / AAC — compatible with virtually all Bluetooth devices
• Broad Device Compatibility: Works with wired speakers, home speakers, power amplifiers, headphones, car kits, and more

Technical Specifications

• Model: D300-HD
• Bluetooth Version: CSR Qualcomm Bluetooth V5.2
• Audio Codecs: APTX / APTX-HD / SBC / AAC
• Output Interfaces: 3.5mm AUX / Coaxial / Optical Fiber (Toslink)
• Transmission Distance: ~15 meters
• Frequency Response: 20Hz – 20kHz
• RF Frequency Range: 2400MHz – 2483.5MHz
• Maximum Power Per Channel: 6W
• Battery Capacity: 500mAh
• Working Time: ~10 Hours
• Charging: Type-C USB
• Dimensions: 73 × 70 × 20mm
• Material: Aluminum Alloy
• Color: Silver Grey

⚠️ Please Note: This is a Bluetooth audio receiver only — it is NOT a transmitter. It supports audio streaming only and cannot be used for keyboards, mice, or file transfers. Only ONE output interface (AUX, Coaxial, or Optical) can be active at a time.

What's in the Box

• 1 × D300-HD Bluetooth 5.2 Audio Adapter
• 1 × Type-C Charging Cable

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For more information on Bluetooth audio technology and wireless audio standards, visit the National Institutes of Health or explore Bluetooth audio codec research at PubMed (NCBI).

Frequently Asked Questions

Q: Can the D300 APTX-HD Bluetooth receiver work as a transmitter?

A: No — the D300 is a Bluetooth audio receiver only. It receives audio signals from a Bluetooth source (like your phone or tablet) and outputs them to your wired speakers or amplifier. It cannot transmit audio from a wired source to Bluetooth headphones or speakers.

Q: Can I use all three outputs (AUX, Coaxial, and Optical) at the same time?

A: No. The D300 supports only one output interface at a time. You must choose between 3.5mm AUX, Coaxial, or Optical Fiber (Toslink) output — they cannot operate simultaneously.

Q: What devices are compatible with the D300 Bluetooth 5.2 audio adapter?

A: The D300 is compatible with any Bluetooth-enabled device such as smartphones, tablets, and laptops. On the output side, it works with wired home speakers, power amplifiers, headphones, car stereo kits, and more — any device with a 3.5mm AUX, Coaxial, or Optical input.

Q: How long does the battery last on the D300 HiFi audio receiver?

A: The D300 features a 500mAh rechargeable battery that provides up to 10 hours of continuous playback. It recharges quickly via the included Type-C USB cable.

Q: What makes APTX-HD better than standard Bluetooth audio?

A: APTX-HD is a premium Bluetooth audio codec developed by Qualcomm that enables 24-bit, CD-grade lossless audio quality over Bluetooth — significantly higher fidelity than standard SBC or AAC codecs. The D300 fully supports APTX-HD for a true hi-fi wireless listening experience.