Ugreen 30348 Music Audio Receiver Adapter, Wireless Bluetooth 4.1, Connector USB, Multi-function bottom, Micro USB for power. UGREEN 30348 UGREEN Bluetooth Receiver 3.5mm Aux Bluetooth 4.1 Receiver Audio Music Car Receiver Bluetooth Car Speaker, with Microphone For PC Speakers, Car&Home Stereo Sound System And A/V receivers.