![[Upgraded] 1Mii B03S Bluetooth 5.3 Transmitter Receiver for TV Home Stereo, Long Range Wireless Audio Adapters with Audiophile DAC, aptX Adaptive/LL/HD, Dual Link, Optical RCA AUX 3.5mm Inputs/Outputs](https://m.media-amazon.com/images/I/61pDB0Y31qL._AC_SL1437_.jpg "[Upgraded] 1Mii B03S Bluetooth 5.3 Transmitter Receiver for TV Home Stereo, Long Range Wireless Audio Adapters with Audiophile DAC, aptX Adaptive/LL/HD, Dual Link, Optical RCA AUX 3.5mm Inputs/Outputs")
[Upgraded] 1Mii B03S Bluetooth 5.3 Transmitter Receiver for TV Home Stereo, Long Range Wireless Audio Adapters with Audiophile DAC, aptX Adaptive/LL/HD, Dual Link, Optical RCA AUX 3.5mm Inputs/Outputs
£69.99
Price: £69.99
(as of May 13, 2026 18:50:52 UTC – Details)
Product Description
Upgrade Your TV to Bluetooth
Enable your TV/PC to stream music to your Bluetooth headphones/speakers
Activate Your Vintage Home Stereo
Wirelessly stream music from your phone or tablet to your old speakers or home stereo
Bypass Mode for Wired Systems
Directly transmit audio via RCA, AUX, or optical cables without using Bluetooth
1 BT Transmitter Mode
2 BT Receiver Mode
3 Bypass Mode
4 TV Setting in TX Mode
Support aptX Low Latency/aptX HD/aptX AD
Note: For the best sync, your Bluetooth headphones or speakers should support aptX LL or Adaptive
Connect 2 headphones or speakers at the same time
Note: When connecting two aptX Low Latency headphones/speakers, Bluetooth codec will switch to aptX
Support audio resolution up to 384 kHz/32 bit
Deliver high-definition audio for an unparalleled listening experience
80m outdoors, 35m indoors
Stream audio up to 80 metres away in open space, or easily cover 35 metres from room to room indoors
1 No Delay, Joy Smooth
2 Dual Connection
3 Bluetooth 5.3 and ESS DAC
4 Strong Signal, Long Range
How to connect in transmitter mode? 
What shall I do if I can not get B03S Bluetooth transmitter to pair with my Bluetooth headphones or speakers?
1) Turn off the Bluetooth of all mobile phones or PCs in the house.
2) Please ensure that the pairing distance is within 1 metre.
3) If you still can’t pair, please set both the B03S and Bluetooth headphones/speaker to factory default settings.
How to reset 1Mii B03S?
Restore factory default of B03S by pressing Bluetooth button for about 10 seconds till all indicators flash once, then it get into pairing mode with red and blue lights flashing, pair as normally.
Why the voice lag still here when use this Low latency B03S Bluetooth transmitter with my Bluetooth headphones?
To achieve low latency, your receiving device should also support function of aptX Low Latency. Or, the receiving device might use another codec (e.g. SBC, aptX), resulting in a 70-200ms audio delay which may be noticeable by some users.
Why are the volume +/- of my B03S not working in TX mode, only works in RX mode?
1) In TX mode, take optical cable as the connected audio cable, volume +/- on B03S may not work if your device does not support Audio/Video Remote Control Profile.
2) Change the optical cable to AUX 3.5mm/RCA audio cable, the volume buttons work.
When the TV is connected to B03S, can my Bluetooth headphones play sound simultaneously with the TV’s built-in speakers?
With many models of TVs, the built-in speakers may not work properly if you choose to use an external audio output device, this is a TV feature and its availability depends on your TV make and model.
【Versatile Transmitter/Receiver】The 1Mii B03S Bluetooth Transmitter/Receiver elevates your audio setup with the latest Bluetooth 5.3 technology. In TX mode, it streams audio from your TV, DVD player, or other devices to Bluetooth headphones or speakers for a wireless experience. In RX mode, it lets you stream music from your phone, tablet, or laptop to your wired stereo system, turning your traditional setup into a modern, Bluetooth-enabled system
【Crystal-Clear Sound, Low Latency】The B03S offers superb audio quality with support for aptX codecs. Enjoy seamless audio-video sync with aptX Low Latency or aptX Adaptive, and high-res sound with aptX HD. It supports dual connections, allowing two devices to be paired at once. Note: For low latency performance, connected devices must support aptX Low Latency. In TX mode, it switches to standard aptX for stability when two aptX Low Latency devices are paired
【SABRE DAC for High Sound Quality】Equipped with the renowned SABRE DAC, the B03S offers industry-leading audio performance, delivering rich, Hi-Fi sound that audiophiles will love. Coupled with Qualcomm chips, it finely restores the smallest details and dynamic nuances in your music, ensuring a superior listening experience
【Extended Range】Thanks to Class 1 Bluetooth technology and dual antennas, the B03S achieves an impressive range of up to 265ft (80m) in open spaces and 80-110ft (25-35m) indoors. Note: The actual operating range can be affected by environmental factors such as Wi-Fi routers, wireless TV adapter, walls, metal obstructions, and the type of receiving device
【Flexible Connection Options】The B03S features both analog and digital inputs/outputs, ensuring broad compatibility with your audio setup. You can connect via optical, RCA, or 3.5mm cables to your TV or stereo system. Note: For TV optical output, set the audio format to PCM and audio output to Optical/Digital for normal use
6 reviews for [Upgraded] 1Mii B03S Bluetooth 5.3 Transmitter Receiver for TV Home Stereo, Long Range Wireless Audio Adapters with Audiophile DAC, aptX Adaptive/LL/HD, Dual Link, Optical RCA AUX 3.5mm Inputs/Outputs
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Thomas –
Much better than the Bluetooth built into my TV
I was struggling with the Bluetooth on my LG OLED TV. No matter what kind of headphones I was using, the Bluetooth would occasionally have static noise and stutter for a moment every now and then, even if I would sit close to the TV. I tried different Bluetooth headphones but no matter which ones I used it would always result in a spotty connection with the TV. I was going crazy because my headphones all worked flawlessly on my computer. I did some research and learned about Bluetooth transmitters and decided on the 1Mii B03S. I was skeptical in the beginning if this would even fix my problem. The setup was straightforward except the pairing which I will get into a bit later but after the initial setup all my Bluetooth problems vanished immediately. Not only have my Bluetooth problems vanished but the range of the Bluetooth has increased as well by quite a lot. I could now be multiple rooms away from the TV and the Bluetooth connection still held steady which was much better than I ever need and anticipated. I was blown away by how good the transmitter worked. The only issue I had was pairing the transmitter to my headphones since there is no display to approve a pairing request. I got around this issue by using an app for my headphones on my phone that allowed the connection to be made. Not sure if there is a better way to pair to the transmitter but it worked for me. My suggestion would be to include a screen on the transmitter to allow pairing with devices. Besides the pairing issue I strongly recommend this Bluetooth transmitter if you are running into similar problems that I had. If you can find a way to pair your headphones to this transmitter then you are set. If there is a version of this Bluetooth transmitter with a screen that allows to manage pairing requests I would get that one instead just to avoid the pairing that can be finicky. Overall this was a good purchase for me for a rather small price compared to the headache I had with trying to get the Bluetooth on the TV to behave before.
Tselikashvili Dimitri –
Ça fonctionne très bien.
Angelo –
Oggetto praticamente perfetto in ogni sua funzione
Jorge N. –
Este dispositivo tiene variedad de funciones, todas relacionadas con la transmisión y recepción de audio por bluetooth.Viene bien empaquetado en una caja de cartón la cual integra una guía rápida en inglés, aunque con muchas imágense, para hacer las conexiones, tanto en TX como en RX.Ya en el interior trae el propio dispositivo en una bolsa de plástico, la guía de usuario en varios idiomas, incluido el español, una cable óptico, otro RCA, otro jack, uno para alimentación micro USB e incluso fuente de alimentación (cosa poco habitual últimamente).Los modos de funcionamiento habituales son:- modo Transmisor o TX: conectando el transmisor mediante cualquiera de los 3 cables (jack, rca u óptico) a una fuente de audio (una TV por ejemplo), enviamos ese audio inalámbricamente a un sistema de altavoces que tengan bluetooth (barra de sonido, auriculares, etc.). Además, se puede hacer a dos sistemas a la vez, pudiendo sonar por dos pares de auriculares bluetooth por ejemplo.- modo Receptor o RX: en este caso conectamos el dispositivo a un sistema con altavoces mediante uno de los cables y enviamos el sonido desde una dispositivo con bluetooth. Un caso muy habitual es usar una cadena de música antigua que no tenga bluetooth para poder poner la música desde un móvil.En mi caso lo uso para conectar dos auriculares bluetooth a una TV, lo que permite escuchar de forma más clara el audio de las películas.Lo conecto con el cable óptico. En mi TV sigue funcionando la salida por los altavoces y por los dos auriculares.Según el modelo de los auriculares, el retardo del audio respecto a la imagen se puede notar más o menos. También podremos regular el volumen desde los propios auriculares si estos lo permiten o desde el transmisor con las teclas (+) y (-).El rango de transmisión es muy bueno, me puedo mover por mi casa de dos plantas sin apenas cortes. Tengo el transmisor en uno de los extremos de la planta baja y solo me falla en el otro extremo de la planta superior.Lo que no me ha gustado tanto ha sido la conexión por primera vez de los dos pares de auriculares. Nada más encender el dispositivo se pone en modo emparejamiento (la luz TX parpadea en rojo y azul). Tras varios intentos, y con los cascos también en modo emparejamiento, no conectaban. He apagado del botón varias veces, he pulsado el botón BT por si acaso, pero nada. Hasta que no he desconectado del cable de alimentación y lo he vuelto a conectar, no se han emparejado.Para el segundo par de auriculares, como indican en las instrucciones, he pulsado 2 s el botón BT, ha entrado en modo emparejamiento, pero tampoco ha funcionado a la primera. Tras varios inicios, al final sí que se han conectado. Puede que esto dependa de la marca de los auriculares.Tras esta primera conexión, posteriormente se conectan sin problema nada más encenderse el dispositivo.Lo alimento desde un USB de la propia TV y así, al apagar la televisión se apaga el transmisor.En resumen, un buen dispositivo que cumple sobradamente con su función de transmisión del audio y con buen alcance pero con el inconveniente de la primera conexión.
Christopher Van Veen –
A fantastic little device! I wanted a way to listen to TV through external speakers or Apple AirPods. This gives me that freedom. In Transmit mode, it sends TV sound right to my AirPods. In Bypass mode, the sound goes right to my external speakers. In Receive mode, I can send music from my phone to those same external speakers.I used an OPTICAL cable from the TV to the B03S input. I also used an OPTICAL cable from the B03S output to the speaker input. It is important that you use optical cable for BOTH of these connections. So make sure your TV has an optical output and that your speaker system has an optical input. DO NOT BUY THIS unless you have optical at the TV and the speaker system.Also, set your TV sound to OPTICAL OUTPUT, and also set it to PCM.Pairing your Bluetooth headphones is simple. Slide the switch on the B03S to RECEIVE, then tap the BLUETOOTH button. Done successfully, the flashing red/blue will turn to solid blue and the TV sound will be directed to your headphones.Great functionality, very compact size, straightforward connections, easy to use.
Andreas K. –
Alle Funktionen sind i.O. (receiver, transmitter und Pass through). Klang erscheint mir auch sehr gut bei hochwertigem Material. Als Kopfhörer nutze ich einen Sennheiser Momentum 4. Die Reichweite ist auf jeden Fall auch überdurchschnittlich.