DBroth via Amazon offers Prime members the iReceiver Wi-Fi Music Receiver/Range Extender in White or Black, model no. JU-WAR18, for $34.99. Apply coupon code "INH83PMX" to cut the price to $19.99. With free shipping, that's $15 off and the lowest total price we could find. (Non-members can spend $35 to qualify for free shipping; otherwise, it adds $5.14.) Compatible with iOS, Android, Mac, or Windows, this device extends existing WiFi networks for music streaming.