Easy to : Simply the speaker with our device, immediately turn the speakers in a fashionable Bluetooth Wireless Play: Removing the hassle of wired connection through the wireless connection and transmission, the user can enjoy a high fidelity music anywhere inside the Control wireless. Removing the hassle of wired connection through the wireless connection and transmission, the user can enjoy a high fidelity music anywhere indoor by wireless control. Developed by the standard USB port. LED status displays, low media remembering. compact portable disk for easy carrying. Applications: Car stereo systems, Home , etc.Product Description The Bluetooth receiver is specially designed for car stereo systems and Home . And, you can change the car stereo and Home Bluetooth systems capacity ones, and linked to the smart phone with Bluetooth, Laptop, Notebook, PC, etc. Operations: For USB speakers without supply receiver Bluetooth music port connecting the charger with 5V USB interface, then the receiver to the AUX port Bluetooth music through the speaker audio cable included 3.5 mm. For speakers with USB port --- the device directly to the USB port of the speaker, then the receiver to the AUX port Bluetooth music through the speaker audio cable included. Pliego conditions: Color: white Bluetooth 2.1 + EDR Support A2DP V1.2 Powered by the USB port (5V DC) Transmission speed: 3 ( mbps) Transmission distance: 10 meters Mode Supply: USB- Item size: 5.5 x 2.0 x 1.0cm / 2.16 x 0.79 x 0.39in weight: 8 g / 0.29 Package List 1 x USB receiver 3.3mm Bluetooth audio music 1 x audio Cable 3.5mm Note:Light and different displays may the color of the item in the a little different from the real thing.The measurement allowed error is +/-1-3 cm.