The Nude Studio 5 Lightning Dock Bluetooth Speaker features a dual pairing Bluetooth wireless technology that allows you to connect two devices simultaneously with the speaker. The 2.1 stereo speaker with bass control includes Aptx technology for real-time streaming of high-quality stereo audio via Bluetooth. While the color pallet is quiet, the acoustics are anything but. The 3 inch subwoofer and two high fidelity, neodymium, drivers work in perfect harmony to deliver a high-resolution sound that stretches from 70Hz ~ 18kHz. This means that the speaker really does justice to the tracks played on it, regardless of the genre of music.