・With an OLED display screen,more convenient to operate ・No need to charge,drive-free installation ・Bluetooth-compatible 5.0 receiver/transmitter 2-in-1 adapter ・Support HiFi sound quality,stable signal ・Broad Compatibility:With the included 3.5mm cable,this adapter can widely be used on your computer,laptop,home stereo system,headphone,smartphone,MP3 player,CD player,etc. Long press to switch mode: ・Transmitter mode:wirelessly streams audio from your non-Bluetooth-compatible TV,home stereo system,or CD player to your Bluetooth-compatible headphones or speakers ・Receiver mode:wirelessly streams audio from your Bluetooth-enabled phone,tablet,or computer to your wired stereo,speakers,or headphones Package included: ・1 x Bluetooth-compatible Audio Adapter ・1 x 3.5mm Audio Cable ・1 x English and Chinese User Manual