Welcome to the store! 1. [Wireless Transmission] Use this Bluetooth audio adapter to easily wirelessly transmit HiFi audio from any Bluetooth-enabled device (including smartphones, tablets, computers, laptops) to any stereo or speaker. 2. [Receiver Function] It is simply a Bluetooth receiver that provides Bluetooth functionality for existing stereo systems, active speakers, car stereos, home stereos, and 3.5mm/0.14 inch wired headphones, not a Bluetooth transmitter or amplifier. 3. [3D Surround Sound] With the 3D sound button, you can switch to 3D mode and enjoy HiFi surround sound from a regular audio source. The advanced internal chip makes this possible using a convenient lossless codec responsible for the conversion. 4. [Support for Small Memory Card Playback] The Bluetooth receiver is driver-free plug and play and supports small memory card playback without transmission delay. The Bluetooth receiver supports two modes: wireless mode and memory card mode. 5. [Automatic Power On and Reconnection] When connected to a power outlet, the Bluetooth HiFi audio receiver can automatically power on and connect to the previously paired device. Compatible with iOS and Android devices. 6. [Easy to Use] This Bluetooth receiver connects to computer speakers, home and car stereos, or other speaker systems via a 3.5mm/0.14 inch cable or RCA cable, and then pairs with Bluetooth audio devices such as smartphones or tablets. And powered by a USB cable. Product Type: Bluetooth Receiver Material: ABS Bluetooth Form: 5.0 Wireless Working Range: 30 feet USB Charging Port: Type C Charging Voltage: DC 5V 1 x Bluetooth Receiver 1 x AUX Audio Cable 1 x RCA Audio Cable 1 x Type C Power Cable 1 x User Manual Your satisfaction is our top priority. We will provide you with the best possible service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!