$5 - 30pin , ללא צורך בחיבור לשקע חשמל
http://www.aliexpress.com/item/TOP-Quality-A2DP-Bluetooth-Music-Audio-30-Pin-Receiver-Adapter-for-iPod-iPhone-iPad-Speaker-Dock/32252423906.html

$16 - RCA או AUX , צריך לחבר לשקע חשמל
http://www.aliexpress.com/item/NFC-Enabled-Wireless-Bluetooth-Audio-Music-Receiver-Adapter-for-Home-Stereo-Sound-System-and-Most-Speakers/32259236099.html