Yongjiangxia Universal Bluetooth Interface For Hifi Amplifier Stereo, And Sony. Product Details This product is specially made for Hifi amplifier or car audio/stereo. Just connect the USB to the Power and plug the two RCA into the Hifi/Amplifier/car radio,connect your phone with bluetooth. You can hear music from the speakers. It can be used for any phone,pad,mp3,etc if only they have bluetooth function. Cable length:100cm Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.