Thank you for viewing! ❤️ Only one available! ❤️ First come, first served! ❤️ Free shipping! ❤️ Immediate purchase OK! Follow-up discount available! Please see my profile before purchasing (*'ω'*) I have many other items for sale (^o^)/ #various★shop ★【Brand new, unused】 so please rest assured ♡ 【Equipped with Bluetooth 5.4】 This Bluetooth transmitter & receiver is equipped with the new version of Bluetooth 5.4. It is agile in use, with low distortion, low power consumption, low latency, Hi-Fi, stereo operation, and is easy and convenient. It has a built-in ceramic antenna, which strengthens the transmission signal and achieves a 10-meter barrier-free transmission, suitable for in-car, office, entertainment, and other household scenarios, so you don't have to worry about signal interruption. 【16 hours of long battery life】 The Bluetooth 5.4 transmitter & receiver has a built-in rechargeable lithium battery that can be used for up to 16 hours on a single charge. Charging via the USB-C port allows for quick charging anytime, increasing convenience. 【Transmitting and receiving / two-in-one】 This Bluetooth 5.4 transmitter & receiver has transmitting and receiving functions and can be switched freely. You can easily switch between transmit/receive modes with one device. 【Enjoy beautiful sound】 The Bluetooth transmitter & receiver adopts Hi-Fi high-quality audio and, with a built-in microphone and CVC 8.0 noise-canceling function, achieves clear call quality. Pair it with your mobile phone and start listening to your favorite music! Bluetooth transmitter & Bluetooth receiver, a great partner for going out and communicating. 【Convenient functions】 Equipped with a multi-function button, you can adjust the volume, play, pause, skip forward, and skip back songs in receiver mode. The Bluetooth 5.4 in-car receiver supports automatic pairing, and in receiver mode, the user does not need to manually search for or select a device, it can instantly automatically pair with the previously connected device. If you have any questions, please feel free to comment ( ^ω^ )