Black and white Here are the key features: • Sony WH-1000XM4 noise-canceling over-the-ear Bluetooth headphones • Ergonomic, fully adjustable over-ear, closed dynamic headphone • 40 mm dome driver for maximum bass and very accurate wide frequency response • Advanced noise-canceling/suppression technology uses two microphones on each earphone to analyze and block external noises, may be switched on or off and may be optimized for wearing conditions and atmospheric pressure • Artificial Intelligence and Digital Sound Enhancement Engine technology to accurately upscale compressed music, especially high-pitched sounds normally lost • Monitor function allows ambient sound to be easily heard while wearing headphones, may be switched on or off; Speak-to-Chat provides automatic pause and resume without removing earphone • Voice Assist function compatible with Siri, Alexa, Google Assistant • Bluetooth 5.0, reception range up to 30 feet, NFC pairing connection option, supports SBC, AAC and LDAC codecs; simultaneous connection to two devices • Sony Headphones Connect app provides extensive sound customization and 3D Reality Audio • HD Voice and built-in microphone for making and receiving phone calls with high quality sound • Touch control on side of right earphone to raise/lower volume, next/previous track selection • Power, Bluetooth pairing, Monitor and Noise Cancel buttons on left earphone • Rechargeable 3.7v internal lithium ion power source: 10 minute quick charge gives 5 hours of play time, 3 hours to fully charge with included 8” USB-C connection cable (recharge at 5.0v) • Headphones will operate 30+ hours (38+ hours with noise reduction off) continuously from a full charge, 9 day standby time, customizable auto-off timer • Can also operate without using any power by connecting an included 4.1 foot 3.5 mm stereo cable to left earphone • 3.5 mm (headphone) male-to-male 50” connection cable included • Airplane in-flight audio connector included • 4 – 40,000 Hz audio...