TEQStone USB Bluetooth Receiver, Bluetooth Audio Stereo Receiver, Universal Fit for Car AUX in Home and outdoor, USB port, card reader, MP3 decoding Universal for car, home and outdoor: The Bluetooth audio receiver is suitable for AUX output and makes your car speaker which does not support wireless connection become a Bluetooth speaker. Tiny size, huge function: Bluetooth hands-free call and volume control TF card reader: It also works perfectly as a card reader, support music play from TF card Audio output: Support audio output via 3.5mm audio jack What You Get: USB Bluetooth Receiver, welcome guide, our worry-free 90 days warranty and friendly customer service.