This 3-In-1-Out Xlr Pro Audio Switch Balanced Audio Converter 3 Channel Hifi Product Details WisWinDa Specialized in Audio Devices, Making Your Audio System More Professional. WisWinDa 3-Channels passive stereo xlr audio switch. This design well have two different versions, WD301A support 3 stereo XLR Input and 1 Output. Another version is WD103A which support 1 stereo Input and 3 Output. Please take the right one according to your demanding and audio system devices. The version 3-In 1-Out is designed for customers whom has several music audio sources equipments with XLR, and the version 1-In 3-Out is designed for clients whom has several audio players or amplifiers. It?s passive plug and play design very convenient in using.(Tips: 1-In 3-Out: 3 Outputs can not be working simultaneously). The audio switch box is aluminum shell design with strong quality xlr connectors which could help to avoid external nosie and keep it high quality singnal transmission. The speaker switch selecter box is a passive design which no need extra power supply, and no affect the sound quality at all. Exquisite appearance with portable size. It could be easily placed and carried to enjoy the music anytime and anywhere. Dimension: 6.7*5.4*2.8inch Weight: 1.65lb 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.