Fangrui Product Details Multiple Devices Are Plug-and-play, And Are Compatible With Aux Audio Ports. Newly Upgraded Bluetooth 5.3, Technology And A2dp Dual-core Processor, Fast Response Speed, Low Power Consumption And Stable Transmission. Receiving Mode, Receive Bluetooth Signals, And Output To Speakers/headphones And Other Devices Through Aux Audio. One-touch Hands-free Calling, When Bluetooth Is Connected, You Can Talk Freely And Say Goodbye To The Danger Of Answering The Phone While Driving, Making Driving . Transformed Into A Bluetooth Speaker, After The Mobile Phone Bluetooth Is Paired, Connect The Aux Audio Jack To The Speaker Without Bluetooth Function To Transform Into A Bluetooth Speaker. Color: As Shown Material: Abs Package Contents: 1 X Bluetooth Transmitter Receiver Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.