(Note - the speaker is open box, its box is only open, but with all its accessories and it works 100%, so its price is cheaper than the market price) A40 TR HEADSET PRIMARY SPECIFICATIONS Connector: 3.5mm Mini-stereo and PC Splitter Boom Mic: 6.0mm Uni-directional TECHNICAL SPECIFICATIONS Transducer Principle: Dynamic, Open 40mm Sound Driver tuned for Gaming Frequency Response: 20 - 20,000 Hz Nominal Impedance: 48 ohms PHYSICAL SPECIFICATIONS Weight w/o Cable: 369g Length: 20.32 cm Width: 19.68 cm Height: 9.52 cm REQUIREMENTS PC, or MAC MixAmp Pro TR MIXAMP PRO TR PRIMARY SPECIFICATIONS Sound Power Out: 100 dBSPL Sample rates: Sample rates: Game audio: 48 kHz @ 16 bit Chat audio: 16 kHz @ 16 Bit USB Standard: USB 2.0 Full Speed and USB Audio 1.0 Stream Port (Line out) Frequency response 20 - 24 kHz USB Game and USB Voice (Chat), Aux port line out Frequency response 20 - 8 kHz Audio inputs Optical In, USB Game and USB Voice, Aux port line in Frequency response: 20 - 24 kHz Total Harmonic Distortion: < 0.05% @ 0 dBFS Signal to Noise Ratio: > 70 dB PHYSICAL SPECIFICATIONS Weight: 296 g Dimensions: 13.7 cm x 8 cm x 3.8 cm REQUIREMENTS PC, Mac, PS4, or Switch