NFC-Enabled Bluetooth 4.0 Aluminium Audio Amplifier Receiver for Home Audio Systems (Wilton BXBN1000) Bluetooth 4.0 (2.1+EDR backward compatible); Support A2DP profile, Superior wireless performance Tap-and-pair and tap-and-connect the receiver with NFC-equipped Android, Windows 8 and Nokia phones Plug the receiver into any A/V receiver, stereo system, or speaker through standard RCA or 3.5 mm jack; AC adapter included Play music wirelessly from your Bluetooth-capable smart phone, iPod Touch, iPhone, iPad, Android. Aluminum enclosure, Dimension: 17.5*16.5*5.8 inch, Weight: 0.66 lb, AC Adaptor: 5V/0.5A