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General characteristics Headphone Type Closed, Dynamic 40mm driver unit, dome type (CCAW coil) Neodymium magnet Impedance (Ohm) 47 ohm (1 kHz) (for headphone cable and unit on), 16 ohm (1 kHz) (for headphone cable and unit off) Aluminum coated LCP diaphragm Frequency response 4 Hz - -40,000 Hz Frequency response (active mode) 4 Hz - -40,000 Hz Frequency response (Bluetooth® communication) 20 Hz - 20,000 Hz (sampling frequency 44.1 kHz) / 20 Hz - 40,000 Hz (LDAC sampling frequency 96 kHz, 990 kbps) Sensitivity (dB / mW) 104.5 dB / mW (1 kHz) (for headphone cable and unit on), 101 dB / mW (1 kHz) (for headphone cable and unit off) ) Volume control Touch sensor Single side cable type (detachable) Cable Length Headphone Cable (approx. 1.5 m, with Oxygen-free Copper Yarn [OFC] and Gold Plated Mini Stereo Plug) Gold Plated Mini Stereo G-Plug Plug Inputs Stereo mini plug Circum-aural rate response control, around the ear NFC Yes DSEE HX Yes Passive mode Yes Battery Battery Charging Time About 3 hours (full charge) USB Battery Charging Method Battery life (continuous music playback time) Max. 30 hours (noise canceling ON), max. 38 hours (Noise Off) Battery life (standby time) Max. 30 hours (noise canceling ON), max. 200 hours (Noise Off) Bluetooth® specification Bluetooth® Version Version 4.2 Operating range Optical field approx. 10 m Frequency band 2.4 GHz (2.4000-2.4835 GHz) A2DP, AVRCP, HFP, HSP profiles Supported audio formats SBC, AAC, aptX, aptX HD, LDAC Supported SCMS-T content protection Noise neutralization Noise on / off switch Yes Personal optimization NC Yes Atmospheric pressure optimization Yes Ambient sound mode Yes Quick focus Yes