Welcome to the store! 1. [Wireless Transmission] Use this Bluetooth audio adapter to easily transmit HiFi audio wirelessly from any Bluetooth-enabled device (including smartphones, tablets, computers, laptops) to any stereo system or speakers. 2. [Receiver Function] It is simply a Bluetooth receiver that provides Bluetooth functionality for existing stereos, active speakers, car stereos, home stereos, 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 practical lossless code responsible for the conversion. 4. [Small Memory Card Playback Support] 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 storage 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 for iOS and for 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 via USB cable. Item Type: Bluetooth Receiver Material: ABS Bluetooth Scheme: 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 highest priority. We will provide you with the best 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!