Feature: 1. [Wireless Transmission] Use this Bluetooth sound adapter to easily transmit HiFi sound 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 stereo, active speakers, car stereo, home stereo, 3.5mm/0.14in 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 sound source. Its advanced internal chip makes this possible using a convenient lossless code responsible for the conversion. 4. [Support Small Memory Card Playback] Bluetooth receiver is driver free plug and play and supports small memory card playback with no delay in transmission. Bluetooth receiver supports two modes: wireless mode and storage card mode. 5. [Auto Power On And Reconnect] When plugged into a power outlet, the Bluetooth HiFi sound Receiver can automatically power on and reconnect with 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 stereo or other speaker systems via a 3.5mm/0.14in cable or RCA cable, and then pairs with Bluetooth audio devices such as smartphones or tablets. And powered via USB cable. Specification: Item Type: Bluetooth Receiver Material: ABS Bluetooth Scheme: 5.0 Wireless Working Range: 30 feet USB Charging Port: Type C Charging Voltage: DC 5V. Package List: 1 x Bluetooth Receiver1 x AUX Sound Cable1 x RCA Sound Cable1 x Type C Power Cable1 x Instruction Manual