HAVIT HV-BT021 TOSLINK Bluetooth Transmitter & Receiver with AptX Low Latency

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This product has been upgraded to HV-BT022 Optical Bluetooth Transmitter & Receiver

  • Bluetooth 4.1
  • AptX Low Latency (TX Mode)
  • Transmitter & Receiver
  • Dual Connections supported


HAVIT HV-BT021 – TOSLINK & Aux Bluetooth Transmitter & Receiver for high end audio system

You have expensive audio system that doesn’t come with Bluetooth? It is time to upgrade it to a Bluetooth enabled device with HAVIT HV-BT021 TOSLINK Bluetooth Transmitter & Receiver! With the Receiver Mode (RX) and Transmitter Mode (TX), you can make your wired speakers, earphones, or TV, PC, iPod, MP3/ CD/DVD player etc wireless; and by connecting to the TosLINK port, you can transmit High Fidelity audio signal to your TOSLINK enabled devices. The HV-BT021 TosLINK Bluetooth Transmitter & Receiver comes with AptX Low Latency technology, which means you can not only enjoy CD class audio quality with AptX, but also will not suffer from latency like many other brands may have.

HAVIT HV-BT021 TosLINK Bluetooth Transmitter & Receiver with AptX Low Latency

TOSLINK + Aux 3.5mm

AptX Low Latency

Transmitter & Receiver 2 in 1

Bluetooth 4.1


TOSLINK, also known as “optical audio cable”, is a Sony/Philips Digital Interface Format (S/PDIF) that offen appear on devices like CD player, video game consoles, lossless PCM audio devices, 5.1/7.1 surround sound system, and other digital high-fidelity devices. As TOSLINK cable is immune to electrical problems such as ground loops and RF interference, TOSLINK devices usually provide better audio quality than regular audio devices. Learn more at Wikipedia

ports of HAVIT HV-BT021 TosLINK Bluetooth Transmitter & Receiver with AptX Low Latency
using ports of HAVIT HV-BT021 TosLINK Bluetooth Transmitter & Receiver with TV

What is AptX Low Latency

While AptX technology improves Bluetooth sound quality to CD quality, the AptX Low Latency technology reduce the latency between audio and visual content to under 40ms, which will not be noticed by human brain. (Must be used with AptX Low Latency enabled devices) Learn More at AptX website

hv-bt021 toslink bluetooth transmitter & receiver diagram

Transmitter (TX) Mode and Receiver (RX) Mode

In TX mode you can transmit your audio signal from TV, PC, iPod, MP3/ CD/DVD player etc to your Bluetooth earphones/speakers; and in RX mode you can receive Bluetooth audio signal sent from your mobile phone and play it with your wired speakers / earphones.

How to Use

Switch to the corresponding mode at your need: TX/ RX mode; 3.5mm Aux/ Optical Toslink (Input for transmitting; Output for receiving).

Note:Turn to RX mode when pair up for the first time with Bluetooth-enabled devices (mobile/ tablet/ laptop), long press the power button until the red + blue light flashes alternately, then double press and enter pairing mode.

LED Light Indications
Pairing: Red and blue LED light flashes alternately
Unpaired: Blue LED flashes quickly
Paired: Blue LED light stays on
Low-battery: Red LED light flashes quickly

Bluetooth V4.1 Technology

With a working range of 10m/33 ft, the Bluetooth 4.1 technology provides lower power consumption that enables up to 15-hours battery life and takes only 2 hours to be fully charged.

hand holding HV-BT021 TosLINK Bluetooth Transmitter & Receiver
using ports of HAVIT HV-BT021 TosLINK Bluetooth Transmitter & Receiver with speaker

Flexible Dual Connections

HAVIT HV-BT021 TOSLINK Bluetooth Transmitter & Receiver can connect to two Bluetooth devices simultaneously, with a maximum memory of 8 paired devices. Once you set up and pair successfully with the first and second devices separately, it will re-pair automatically next time.

What They Say


  • Chip: CSR BC8670
  • Input: DC 5V ≥300MA
  • Battery Capacity: 350mAh
  • APTX Low Latency: Supported (TX Mode)
  • Frequency: 2.402-2.480GHz
  • Net Weight: 38.6g
  • Dimensions:60*60*18.4mm
  • Profiles Supported: HSP, HFP, A2DP, AVRCP
  • Working Range: 10m/ 33ft. (without obstacles)
  • Working time for RX Mode: AUX 15H, SPDIF 12H
  • TX Mode: AUX 15H, SPDIF 12H
  • Charging time: 2 Hrs
  • Play time: 15 Hrs for Aux mode, 12 Hrs for S/PDIF mode

Package Includes

  • 1 × Bluetooth Transmitter and Receiver
  • 1 × Micro USB Cable
  • 1 × 3.5mm Aux Cable
  • 1 × Digital Optical TOSLINK Cable
  • 1 × User Manual
hand holding HV-BT021 TosLINK Bluetooth Transmitter & Receiver package includes

HAVIT HV-BT021 TOSLINK Bluetooth Transmitter & Receiver with AptX Low Latency

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Additional information

Weight0.041 kg
Dimensions6.1 × 6.1 × 1.78 cm
How do I reset HV-BT021 and reconnect it with my Bluetooth device?2017-11-02T16:18:11+00:00

Please follow these steps:
1. Switch to a different mode (e.g. switch to RX mode if you were using TX mode originally)
2. Reboot the device, but don’t pair with the headphones yet.
3. Turn off the device.
4. Switch back to the original mode
5. Reboot and pair the headphones again.

How long is the transmitting range of this product?2017-11-03T16:58:41+00:00

The transmitting range is about 10 meters (33 feet).

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