POWERFUL AMPLIFIER - Drive your headphones to their maximum performance with the powerful dual-mono 285 milliwatt headphone amp that's 6 times more powerful than an iPhone. While advanced engineering allows for balanced wiring making this perfect for single-ended and balanced headphones alike HIGH RESOLUTION AUDIO - Plays all high res audio formats including DSD 256, DXD 384, PCM 384 kHz and MQA with native digital to analog conversion so you can listen to any file the way the original recording was intended EASY CONNECTIVITY - Connect directly to your smartphone Digital Audio Player or tablet using the USB A male digital input (Apple Lightning Camera Connection Kit or Android On The Go or OTG cable required and sold separately) then connect to your headphones using the 3.5mm jack. For home just connect the included USB 3.0 or USB 2.0 cables to your PC or Mac then use the 3.5mm line out to connect with active speakers or amplifier PORTABLE DESIGN - It’s a small sized gadget with a stylish black matte finish. The durable but lightweight aircraft grade aluminium case is unbeatable in Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI) handing. A rechargeable lithium polymer battery provides up to 10 hours of non stop music enjoyment while streaming from Spotify Tidal or Apple Music. Perfect for personal or professional use at home, office, or on the go TECH PACKED - For enhanced sound the built in iPurifier technology rebalances the USB signal to reduce jitter and packet errors while the built in iEMatch means it can drive high sensitivity headphones. S-Balanced technology means headphone channel separation is unchanged and the Direct Drive Amp will drive high impedance headphones up to around 600 ohms