The HD3 Next Gen, also known as the A2-HD, is a powerful music system that delivers exceptional stereo sound and is perfect for small rooms, desktops, or gaming setups. Choose between wired or wireless connections, like USB audio from your computer, aptX-HD Bluetooth from your phone, tablet or computer, or analog from your turntable or cassette player. And the HD3 Next Gen features an exceptional headphone amplifier, so your music sounds great, no matter how you listen to it. Pro Tip: Achieve the best desktop audio with the HD3 Next Gen by connecting via Bluetooth or USB. This bypasses your computer's standard quality audio components, instead using the HD3 Next Gen’s built-in DAC to enhance sound quality.