Specification Name: 2-in-1 wireless transmitter receiver Color: black Material: plastic Electronic components Size: 9.9X2X1.2cm/3.90X0.79X0.47 inches Interface: 3.5mm Plug and Play: Plug and Play External power supply: no external power supply Transmission rate: 24 (Mbps) Effective working radius: 10 (M) Bluetooth standard: 5.0 Operating Frequency: 2.4GHz (Mhz) DESCRIPTION BLUETOOTH ADAPTER: This wireless adapter can be used as a transmitter and receiver for seamless audio streaming from your TV, cell phone or CD player to Bluetooth headphones, speakers or car stereo. HIGH QUALITY STEREO SOUND: Enjoy crystal clear, high quality stereo sound with this Bluetooth adapter. Whether you're listening to music, watching a movie or making a phone call, you'll experience superior audio quality. PORTABLE: The Bluetooth adapter is perfect for use on the go. Whether you're on an airplane, in the car or at home, you can easily plug in and enjoy your audio content wirelessly! LONG BATTERY LIFE: Battery life is up to 25+ hours. When you start watching a movie on your next long-haul flight, plug the adapter into your seat's headphone jack and listen to the movie with your wireless noise-canceling headphones. Easy to use: The Bluetooth adapter is easy to use, simply plug it into your device's auxiliary port, connect your Bluetooth device and enjoy wireless audio streaming! Product List: 1*Adapter