MPOW Streambot Box NFC-Enabled Bluetooth Audio Receiver with APTX for Sound System, Home Stereo and Most Speakers Highly standard aptX technology provides you high-fidelity stereo music and enjoyment with your stereo speaker at home than others. Bluetooth 4.0: offers significantly lower power consumption and more stable signal transmission than previous versions. Equipped with 3.5mm Audio and RCA Cable, suitable for your new and old speakers. NFC function provides a second connection method to have easier and more convenient using experience. Additional provides a high quality charger, help you save time and money to enjoy the pleasure of Streambot Box.