Makes your speakers Bluetooth for streaming music from your smartphone or tablet. Simultaneously pair your smartphone and tablet and stream music from either one. Easy pairing and automatic re-pairing: Pair your device to the adapter once with a single button press and you're done. Stream music from up to 15 meters (50 feet) away from your speakers. Works with most speakers: Plugs into any powered PC speakers, home stereo systems and A/V receivers using RCA or 3.5 mm jacks.