Up to 50 hours of battery life with a 3 minute quick charge for 1.5 hours. Digital Sound Enhancement Engine. Built-in microphone provides hands-free calling. Lightweight build with swivel earcups and adjustable headband. Pair with two Bluetooth devices at the same time for easy pairing. Easy-o-use buttons help control volume tracks and more. Voice control compatible with your preferred voice assistant using Google Assistant or Siri. Headphones Connect app. 30mm Driver unit. 2.4Ghz Frequency range. Includes charging cord.