Use Bluetooth to wirelessly stream music to any stereo or standalone speaker from your smartphone or tablet. Using the HA100 or NFC Tag, connect to any stereo that has 3.5mm or RCA jacks to connect to your Bluetooth or NFC-enabled device. transmits within direct line of sight up to 20 meters (66 feet) away. All A2DP stereo Bluetooth devices are compatible with Bluetooth 4.1.