【2-IN-1 Bluetooth 5.0 Transmitter & Receiver Mode】Adopt the best Bluetooth 5.0 chip, stronger connection stability and wider signal range of 10M. 2 modes Transmitter Mode (TX) / Receiver Mode (RX) can transmit stereo Audio from your non-Bluetooth Audio sources (TV, MP3, CD player, PC or book Reader) to your Bluetooth-enabled headphones, speaker or other receiver, and also can make your non-Bluetooth devices ( headphones, speaker) receive the audio from Bluetooth Audio sources (mobile phone etc). | 【LCD Visual Screen & 2 Connections】Installed with the newest design, LCD display to show the modes and choose the Bluetooth headset or speaker to connect. The Wireless USB Bluetooth Adapter can be directly used for PC via USB or using the included 3.5mm cable (included) | 【Long Playtime & Amazing Sound Quality】Equipped with a high quality lithium polymer battery and can be used continuously for up to 5 hours in transmitter mode or receiver (receiver) mode. At the same time, the USB Bluetooth adapter is equipped with high quality audio, gives you a good experience when watching late-night shows. | 【Plug and Play & TF Card Reader】No drivers needed, easy to use in seconds. The TF card playback features a data transfer rate of up to 20 MB/s and a computer reader function at the same time, so you can easily copy and paste it. Once you pair it, it will connect automatically next time. | 【Extensive Compatibility & Small Size】You can use the USB Transmiter Adapter/Receiver Adapter everywhere and it is small enough to be taken easily for PC, Laptop, TV, car stereo, home stereo, headphones, etc. Welcome!!!