With high performance and a realistic sound profile featuring a sampling rate of up to 768 kHz/32 Bit, it dominates its category thanks to THX AAA amplifier technology and the outstanding DAC chip from AKM. Three headphone connection options - 2.5 mm, 3.5 mm, 4.4 mm - and high output power allow optimal operation with a variety of headphones, covering almost any musical preference. The music source connects to the FiiO Q3 via USB-C or the 3.5 mm Aux-In port. All necessary cables are included in the package. Bass, gain levels, and filters can be adjusted as needed using the buttons on the top of the sandblasted aluminum housing. The volume can be precisely adjusted using the tactile analog dial located at the bottom of the FiiO Q3. Depending on the quality of the playback sampling rate, the RGB display around the volume control changes color, allowing you to easily determine which sampling rate is being used on the "Hi-Res Audio" certified FiiO Q3. In addition to its high-performance audio components, the Q3 also features a long-lasting battery that provides over 10 hours of uninterrupted enjoyment.