New and high quality! Features: This extremely portable, lightweight wireless audio transmitter and receiver is an ideal wireless audio solution for a wide range of situations and uses. Transmitter mode: wirelessly streams audio from your non-Bluetooth TV, home stereo system, or CD player to your Bluetooth headphones or speakers. Receiver mode: wirelessly streams audio from your Bluetooth-enabled phone, tablet, or computer to your wired stereo, speakers, or headphones. It has powerful wireless audio streaming capabilities. Slip this transmitter and receiver into your backpack or laptop bag and take it on the go without the slightest effort. Broad compatibility: With the included 3.5mm cable, this receiver transmitter adapter can be widely used on your computer, laptop, home stereo system, headphones, smartphone, mp3 player, CD player, etc. Mode Switching: If the device has been in a mode for a long time, it needs to be reactivated twice to switch to another mode. If the device has just switched mode, you only need to recharge once to switch to another mode immediately. Pairing Method: RX mode: Pairing name: Find in the Bluetooth settings of the phone to pair. The blue light flashes during the pairing process, and the blue light stops flashing after the pairing is successful. TX mode: TX mode automatically searches for other Bluetooth receiving devices (such as Bluetooth headsets, Bluetooth speakers, Bluetooth receivers, etc.), the red light flashes during pairing, and the red light stops flashing after pairing is successful. Click once for the receiver function; press twice in succession for the transmitter function. Material: plastic Color: As shown Package includes: 1 PC Note: Since different computers display different colors, thank you for your understanding, the actual product color may be slightly different from the picture.