Bluetooth Receivers & Transmitters

Buying a Bluetooth receiver gives old equipment a second life: the stereo system, the car without Bluetooth, the amplifier from years ago — with one adapter in the AUX port, they suddenly stream wirelessly from your phone. At Strex, you can choose between a compact receiver with Bluetooth 5.4 for on the go and a 2-in-1 transmitter & receiver that also masters the reverse route: from TV to your wireless headphones.

Receiver or transmitter: which direction do you need?

The distinction is one question: what transmits and what receives? If you want to send music from your phone to something old — a car, stereo, or speaker with only AUX — the receiver is your adapter: it receives Bluetooth and passes it on via cable. If you want to send sound from a device without Bluetooth to wireless headphones — think of watching TV without disturbing your housemates — you need the transmitter mode. The 2-in-1 switches between both directions (RX/TX) and is therefore the flexible choice; the standalone receiver with BT 5.4 is the latest generation for those who only use the phone-to-AUX route.

What to look for?

• ✔ Direction (RX/TX) — receiver receives, transmitter sends; the 2-in-1 does both
• ✔ Bluetooth version — 5.4 means a more stable connection and better battery efficiency than older versions
• ✔ Connections — 3.5mm AUX fits almost everything; RCA for stereo systems
• ✔ Battery — a built-in battery makes the receiver portable; it charges via USB in the car
• ✔ Warranty — 2 years standard at Strex

The TV delay you can avoid

The classic stumbling block with TV-to-headphone setups: lip synchronization. If there is a noticeable delay between the image and sound, it is due to the audio processing in the chain — not necessarily the adapter. Two practical fixes: connect the transmitter to the headphone output of the TV instead of using detours, and check if your TV has an "audio delay" or "lipsync" setting to adjust the difference. This way, watching movies at night remains a pleasure instead of a dubbed annoyance. In the car, the receiver is the natural partner for a phone holder — phone in sight, music through the speakers. Wireless earbuds and gaming headsets can be found as neighbors in the audio collection.

Frequently asked questions

How do I connect a Bluetooth receiver to my car?

Plug the receiver into the AUX input of the car radio, pair your phone once via Bluetooth, and set the radio to AUX. From then on, your phone will connect automatically when you get in, and music and navigation will run through the car speakers — even in cars from before the Bluetooth era.

Can I watch TV wirelessly with headphones?

Yes, with the transmitter mode (TX) of the 2-in-1: connect it to the audio output of the TV and pair your wireless headphones. The TV sound will then play in your headphones — housemates can sleep, and you hear everything.

Does a receiver work on an old stereo system?

Yes, via the AUX or RCA input that almost every amplifier has. The adapter turns the system into a Bluetooth speaker: pair your phone and stream. The sound quality of the system is fully preserved — the adapter only adds the wireless link.

Can the receiver charge and play at the same time?

Yes, in the car you can just leave it connected to the USB power supply while it plays — then the built-in battery is never a concern. On the go without a power source, it works independently on its battery, handy for a speaker in the garden or at the campsite.

Check out the Bluetooth adapters from Strex — receiver or 2-in-1 transmitter — and give your favorite old device wireless ears.

Want to know more? Read our article "Bluetooth transmitter or receiver: what do you need?".