Bluetooth Transmitter Receiver

 Introducing the world’s first aptX HD in both TX / RX mode; Powered by premium CSR8675 chipset, this Bluetooth adapter supports the latest Bluetooth V5.0, whereas most of the others on other stores are only equipped with CSR8670 chip and support Bluetooth V4.1, V4.0 or even V3.0. With aptX HD, our Bluetooth transmitter/receiver can stream stable audio and deliver CD-quality sound wirelessly over Bluetooth connections.

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  • Real-Time Audio Transmission: This Bluetooth receiver adopts the aptX Low Latency Technology in both TX & RX modes, which can reduce audio lag under 40ms and let you enjoy high-quality audio in sync with the picture (Your Bluetooth headphones or speaker must also support aptX LL / aptX as well.)
  • Long Battery Life: Internal battery provides Bluetooth USB adapter for more than 24 HOURS of use after 3 hours charging time. It also supports charging and streaming simultaneously.
  • Optical+RCA+3.5mm: Apart from 3.5mm Aux / RCA connection, Bluetooth Adapter also supports optical cable (TOSLINK /SPDIF) input / output. With a provided optical cable, you can enjoy high-quality digital sound through multiple audio outputs, such as wired stereo, speakers, or headphones.
  • Under TX mode, two Bluetooth headphones can be paired at once so parents can watch in silence and give children a needed break; Under RX mode, two smart devices can be paired for playing different songs. Record 8 devices and automatically re-pairing with existing paired devices.
  • Auto-Turn OFF: In RX or TX mode, The BT-B19 will automatically power off if there are no devices to be connected within 10 minutes.
  • Pair with Each Other: Support work with each other, One as a transmitter, the second - as a receiver.

Technical specifications:

  • Bluetooth version: V5.0, Class II
  • Battery: 600mAH rechargeable lithium battery
  • Operating time in transmitter mode: 26 hours
  • Operating time in receiver mode: 22 hours
  • Transmission range: within 10 m
  • Charging time: 3 hours
  • Net weight: about 45g
  • Size: 63 x 63 x 20mm

Audio Coding:

  • TX: aptX HD, aptX Low latency, aptX, SBC
  • RX: aptX HD, aptX Low latency, aptX, SBC, ACC

Package contents:

  • 1 x Bluetooth Transmitter/Receiver Adapter
  • 1 x Micro USB charging cable
  • 1 x 3.5mm audio cable
  • 1 x 3.5mm jack to 2 RCA plug cables
  • 1 x Digital Optical Toslink Audio Cable
  • 1 x User manual


1. Charging is necessary for first use. It can be fully charged for about 3 hours. The LED lights up red during charging and turns off when it is fully charged. 
2. The optical terminal and AUX terminal can not be used at the same time. Please note that digital output can not be done simultaneously when digital input.
3. In order to use aptX HD and aptX LL, your Bluetooth headphones and speakers need to have aptX HD and aptX LL function. Otherwise, the codec will automatically be aptX or SBC.

Our Guarantee

We truly believe we carry some of the most innovative products in the world, and we want to make sure we back that up with a risk-free ironclad 30 days guarantee.

If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase.

Buying items online can be a daunting task, so we want you to realize that there is absolutely ZERO risk in buying something and trying it out.  If you don't like it, no hard feelings we'll make it right.

We have 24/7/365 Email Support.  For any questions, click the contact us at the bottom of the page to send our team an email!

Due to OVERWHELMING DEMAND, we only have a Limited Amount In Stock.