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Are you looking for a Bluetooth audio adapter that can convert your non-Bluetooth home device, e.g. home stereo or old TV into Bluetooth?
It is best that this Bluetooth transmitter receiver optical allows you and your partner to watch movie or enjoy music in the evening, where it does not disturb your neighbors and still be able to enjoy the background noise.
It is best to equiped with LCD display, then you know what kind of mode you were in and which devices are connected.
It must also have a long transmit/receive range so that you can enjoy the music from every corner of the room when carrying your mobile phone.
It must also equiped with a switch button that prevents annoying and unnecessary connections, while eliminating frequent disconnection of the plug.

Bluetooth 5.3 Transmitter Receiver - Perfect Bluetooth for the old home stereo with all functions you wanna!!! So that your wishes of making a non-Bluetooth TV-device BT-capable by using an audio adapter has come true.

3 Modes
①Transmitter Mode: Allows non-Bluetooth-devices to retrofitted into Bluetooth and thus an audio stream can be sent e.g. to a BT speaker or headphones. ②Receiver Mode: Enable Bluetooth on your wired speakers, stereo, home theater. Receive audio wirelessly from any Bluetooth device. ③Bypass Mode: In Bypass mode, you can easily connect various audio systems to TV using optical/ aux or RCA cables. When connecting the TV, please set to PCM Audio on TV.

Bluetooth 5.3 Audio Adapter
Equipped with Bluetooth 5.3 chip for the faster data and music transmission, the Bluetooth TV Adapter improves the performance of Bluetooth audio. Dual Connections
You can connect and use the Bluetooth TV Transmitter with two audio receivers such as Bluetooth headphones/speakers simultaneously in TX mode. Sharing TV with family/friend/lover at night with this TV Bluetooth audio transmitter. You are NO LONGER AN ISLAND at this moment. Volume control function allows you adjust the volume through adapter. Please note that when adjusting the volume, the volume of both headphones will be adjusted simultaneously. 1.8-Inch LCD display & ON/OFF Switch Button
You can immediately knows whether the Bluetooth 5.3 Transmitter Receiver recognizes a nearby headphones or not, then select it in the display and confirm with OK. The on/off switch button avoids always unplugging the plug. 
Long Range
Due to external antenna, the transmission range is significantly better outside as well as in the garden than other Bluetooth transmitter receiver for home stereo. Enough range to take your phone anywhere. 
Wide Compatibility
Packed with optical audio cable, 3.5mm aux cable and 3.5mm to RCA audio cable. The Bluetooth Audio Transmitter is compatible with most TVs. Make sure to set audio format to PCM when connect a TV with Optical output.
MULTIFUNCTIONAL TRANSMITTER & RECEIVER MAKE HOME ENTERTAIMENT SYSTEM WIRELESS: If you wanna transfer home wired device into bluetooth ones, our bluetooth adapter can meet your needs. Our bluetooth transmitter receiver is equipped with Optical/ 3.5mm AUX/ 3.5mm to RCA, which Bluetooth-enable virtually any of audio devices at home. You can use it to pair phone to play music or movies through home theater. Or play music from record player to bluetooth speaker at night but not annoy neighbors
UNIQUE BYPASS FEATURES & DUAL DEVICE LINK: Get into bypass mode you can have option of listening to TV soundbar + headphones or speaker without disconnecting. Bluetooth receiver & transmitter mode both can be paired with 2 Bluetooth devices simultaneously, so you can share music or movie without disturbing others at night. If you're hearing impaired or just prefer listening at different volume from others, it's perfect with this adapter. You can also mute TV and still listen at any volume
EXTENDED LONG RANGE THANKS TO BLUETOOTH 5.3 & ANTENNA: Audio Adapter employs special circuitry and precision-tuned antenna to extend wireless range to up to 45 feet. Longer range and stronger connection, audio won’t cut in/ out easily. You can paired the adapter to TV and headphone, watch sports on TV and walk around house and backyard without missing any action. When you turn the unit on after first pairing, the transceiver automatically re-pairs with recently connected device
1.8 INCH LCD DISPLAY & ADJUSTABLE VOLUME & LOW LATENCY: bluetooth transmitter receiver provide you a transparent way to pair wireless devices. LCD display makes your operation easier, you can freely choose Bluetooth headphone/ speaker to connect, clearly read mode, volume, connection status, etc. You can adjust volume via the multifunctional knob AND use PLAY BUTTON as PAUSE BUTTON in RX-Mode. Our audio adapter has no delay and offer high fidelity audio
EASY TO SET UP, WIDE COMPABILITY: This transmitter receiver supports optical/ AUX/ RCA audio standards, compatible with 99% TVs. Easy to set up: 1.Connected via type-c cable to power source and power on. 2.Choose mode between TX/RX/Bypass. 3.Connect your devices. It comes with all cables you could need to connect the unit to device, giving you the most flexibility and quality for connecting. Used for home audio, home gym, home theater. Work with soundbar, home stereo, headphone etc.
Note: This bluetooth transmitter receiver have no battery inside.