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uBTR HiFi Bluetooth Receiver

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Bluetooth receiver with long battery life in a compact chassis.

High quality wireless audio made possible with the Qualcomm CSR8645. The uBTR brings the premium Qualcomm CSR8645 Bluetooth chip to the affordable device segment for the first time. The CSR8645 allows the uBTR to support Bluetooth 4.1 as well as the aptX, SBC, and AAC audio codecs for high-fidelity wireless audio, up to a distance of 10 meters.

Inside the heart of the μBTR lies the Texas Instruments TPA6132A2, a high-performance headphone amplifier. This allows the μBTR to bring out the best of your headphones and provide a higher-quality wireless experience better than even that of a wired connection.

Independent volume control
The μBTR features independent local volume control, which means that you can adjust both the Bluetooth device’s volume and the μBTR’s own volume separately. Making it easier to get a volume that’s just right for you.


  • Qualcomm CSR8645
  • Bluetooth chip
  • aptX support
  • Independent local volume control
  • Built-in microphone
  • NFC support

uBTR HiFi Bluetooth Receiver Specifications:

  • Weight: About 13 g (incl. battery)
  • Dimensions: About 55x19x9.1mm
  • Audio Input: Bluetooth connection (Bluetooth 4.1 supported)
  • Bluetooth Codec: Supporting SBC, aptX, AAC
  • NFC: Supported:
  • MIC Function: Supported
  • Headphone Output: 3.5 mm stereo jack
  • USB Port: Type C USB
  • Volume Control: Side buttons:
  • Charging Indication: Yes (Red light flashes when powered off and goes off after charging completed)
  • Charging Time: ≤1 h(DC 5V 500mA)
  • Power Input: Recommend DC5V, 500mA
  • Battery Capacity: 120 mAh:
  • Drive Ability: 16, 32 Ω (recommended)
  • Output Power: ≥20mW (16 Ω/THD<1%)
  • ≥ 10mW(32Ω/THD<1%)
  • Frequency Response: 20~20kHz(aptX connection)
  • THD+N: <0.05%(1 kHz, aptX connection)
  • Output Impedance: <0.3 Ω(32Ω loaded)
  • SNR: ≥95dB (A-weighted)
  • Crosstalk: ≥ 78 dB(32Ω loaded)
  • Bluetooth Chip: CSR8645
  • Accessories: Type C USB charging cable, Quick Start Guide, Warranty Card
  • Battery Life: About 9 h (tested with iPhone): Bluetooth Transmitter: iPhone (AAC)
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