New, unused, and free shipping (simple packaging, mail service) Price not negotiable ● An audio transmitter/receiver that enables wireless audio by connecting to devices without Bluetooth functionality. ● A Bluetooth adapter that can be easily used as both a transmitter and a receiver with a single switch. ● By connecting it to wired (3.5mm) high-quality speakers or your favorite earphones, you can enjoy music from your smartphone wirelessly. ※ Receiver mode ● By connecting it to a computer or TV without Bluetooth, you can wirelessly play audio through Bluetooth-enabled earphones or speakers. ※ Transmitter mode ● By connecting it to the AUX terminal of a car audio system, you can listen to music from your smartphone through the car's speakers. ● Equipped with a Bluetooth 5.4 chip for faster and more stable communication and lower power consumption. ● Features an auto power-off function that automatically turns off the power after approximately 10 minutes if the transmission from the connected device is interrupted. 【Notes】 ※ Cannot be connected to peripheral devices such as a mouse. ※ If connected to earphones, etc., with BT5.0 or earlier, audio delay may occur. ※ Adjust the volume on this product, the transmitting device (TV, computer), and the receiving device (earphones, speakers). Bluetooth receiver transmitter Bluetooth transmitter adapter TV AUX high-quality sound connection computer transmitter car receiver audio 3.5mm car audio wireless driver-free earphone jack