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, 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 5mm/0.14in cable or RCA cable, and then pairs with Bluetooth audio devices such as smartphones or tablets. And powered via USB cable. 1 x Bluetooth Receiver1 x AUX Sound Cable1 x RCA Sound Cable1 x Type C Power Cable1 x Instruction Manual Item Type: Bluetooth ReceiverMaterial: ABSBluetooth Scheme: 5.0Wireless Working Range: 30 feetUSB Charging Port: Type CCharging Voltage: DC 5V