Bluetooth Wireless Transmission: Just pair your device with a Bluetooth audio adapter, whether you are using old speakers, an old stereo or a car audio system, you can easily transfer music through the 3.5 mm or RCA cable of the Bluetooth audio receiver Become wireless music.Equipped with TF Card Slot: Bluetooth stereo receiver adapter is equipped with TF card slot (maximum support 64G) and Bluetooth mode. You can choose to play your favorite songs from your smart device or TF cardStable Connection: Using Bluetooth 5.0, the Bluetooth stereo receiver provides a more stable connection without delay or lag. The 3D button is specially designed for subwoofer mode. In addition to crystal clear sound, it also provides powerful and heavy music effects.Subwoofer Mode: The 3D button is designed for subwoofer mode. In addition to crystal clear sound, it also provides powerful and heavy music effects.Wide Coverage: The Bluetooth stereo receiver can cover a range of 15M, and the connection is stable. No longer limited by wired, to provide you with more convenience and bring a smooth and pleasant music experience. Feature:Wireless Transmission: Just pair your device with a Bluetooth audio adapter, you can easily transfer music through the 3.5 mm or RCA cable of the Bluetooth audio receiver Become wireless music.TF Card Slot: You can choose to play your favorite songs from your smart device or TF cardStable Connection: Using Bluetooth 5.0, the Bluetooth stereo receiver provides a more stable connection without delay or lag.Subwoofer Mode: The 3D button is designed for subwoofer mode.Product Specifications:Bluetooth specification: V5.0+ EDRBluetooth Operating distance: 30 feetPower supply: 5V 1A (power adapter not included)Product List:1* Bluetooth receiver 1* Type C power supply cable1* RCA cable.1* 3.5mm audio cable1* User manual