SONY / WH-1000XM4 SM Platinum Silver Wireless Headphones

Wireless headphone that incorporate the industry's highest level noise canceling function. With DSEE Extreme installed, which incorporates AI technology, you can enjoy high-resolution high-quality sound even with various compressed sound sources including CDs, MP3s, and streaming.

Specifications
◇ Headphones
■Model: Dynamic, closed type
■Driver unit: 40mm dome type (CCAW voice coil adopted)
■Sensitivity: 105dB/mW (Wired connection, 1kHz at POWER ON), 101dB/mW (Wired connection, 1kHz at POWER OFF)
■Magnet: Neodymium
■Playback frequency band: 4 Hz-40,000 Hz (JEITA)
■Impedance: 40Ω (Wired connection, 1kHz at POWER ON), 16Ω (Wired connection, 1kHz at POWER OFF)
■Cord length: About 1.2m, OFC line, gold-plated stereo mini plug (headphone cable)
■Cord type: Single-sided (removable type)
Input plug: Gold-plated L-type stereo mini plug
■Vibration plate: Aluminum coated LCP
■Weight: About 254g

◇ Other
■Power supply: DC 3.7V (built-in rechargeable lithium-ion battery)
■Charging time: About 3 hours (full charge) (when using 1.5A AC adapter)
■Charging method: USB charging
■Battery life (continuous audio playback time): 30 hours maximum (when NC is ON), 38 hours maximum (when NC is OFF)
■Battery life (continuous talk time): Up to 24 hours (when NC is on), Up to 30 hours (when NC is off)
■Battery life (standby time): Max 30 hours (when NC is ON), Max 200 hours (when NC is OFF)
■Frequency characteristics: 4Hz-40,000Hz
■Impedance: 40 Ω (Wired connection, 1 kHz at POWER ON), 16 Ω (Wired connection, 1 kHz at POWER OFF)
■Audio input terminal: Stereo mini jack

◇Microphone
■Model: MEMS
■Directivity: Omnidirectional
■Effective frequency band: 50Hz-8,000Hz

◇ Bluetooth
■Communication method: Bluetooth standard Ver.5.0
■Output: Bluetooth standard Power Class1
■Maximum communication distance: Line-of-sight distance about 10m
■Frequency band used: 2.4 GHz band (2.4000 GHz-2.4835 GHz)
■Compatible Bluetooth profiles: A2DP (Advanced Audio Distribution Profile), AVRCP (Audio Video Remote Control Profile), HFP (Hands-free Profile), HSP (Headset Profile)
■Compatible codecs: SBC, AAC, LDAC
■Supported content protection: SCMS-T method
■Transmission band (A2DP): 20Hz-20,000Hz (44.1kHz sampling) / 20Hz-40,000Hz (LDAC 96kHz sampling, 990kbps)

◇ Accessories
■USB (Type-C) cable (A-C) for charging, warranty, carrying case, plug adapter for aircraft, connection cable, instruction manual