Sony headphone and headset , wireless, with noise cancellation & voice control Type: Closed, Dynamic, Over-Ear (Circumaural) Driver Size: 40 mm, dome type (Neodymium magnet) Connectivity Bluetooth: 4.1, NFC (One-touch), 3.5mm Wired Audio Jack Supported Audio Codecs: SBC, AAC, aptX, aptX HD Noise Canceling: Artificial Intelligence Noise Cancelation (AINC) via one-button toggle Battery Life: Up to 35 hours (Bluetooth + ANC active) / Up to 200 hours standby Quick Charging: 10 minutes of charging yields 1 hour of playback Full Charge Time: Approx. 7 hours (via Micro-USB) Frequency Response: 7 Hz – 20,000 Hz (Wired / Active); 20 Hz – 20,000 Hz (Bluetooth) Weight: Approx. 240 grs Smart Features: Sony Headphones Connect App support (EQ adjustment), Voice Assistant compatible Voice Messages from the device: Power & Battery Status: When powering on: “Power on” When powering off: “Power off” When checking the remaining battery charge: “Battery level high” / “Battery level medium” / “Battery level low” When automatically turning off due to a low battery: “Please recharge headset” Connectivity: When entering pairing mode: “BLUETOOTH pairing” When establishing a connection: “BLUETOOTH connected” When disconnecting from a device: “BLUETOOTH disconnected” Noise Canceling (NC) Functions: When turning on the noise canceling function: “Noise canceling” When turning off the noise canceling function: “Off” Speak your command into the headset microphone, such as: "Play some music" "Next song" "Call [Contact Name]" 1. The Built-In Physical Controls (No Voice Needed) On the right earcup, you will find a multi-function slider switch and volume buttons: Play/Pause: Press the slider button straight inward once. Next Song: Slide the switch forward (toward the + volume side) and release. Previous Song: Slide the switch backward (toward the - volume side) and release. Answer/End a Call: Press the slider button straight inward once when your phone rings. Comes with carry-case and USB cable Working perfectly, excellent sound quality, bass and treble. Stunning noise cancellation. Headset, case and cable will be packed and shipped with great protection.