JBL Live 660nc headphones

*JBL Live 660NC* - These are completely Brand NWT pair of wireless over-ear noise-canceling headphones. - Bluetooth pairing/ volume and playback control/ position matching! -3.5 mm jack for connection via cable, while on the left resonator, there is a USB-C port for charging headphones. - JBL Headphones App: The headphones can be easily personalized. The app enables you to change the EQ settings, select your preferred Voice Assistant (Google Assistant or Alexa) - also includes a list Carrying Pouch: The package includes a soft pouch for protection and storage while traveling to prevent damage. -Ambient Aware: With the Ambient Aware technology, you can increase the Google Fast Pair: The JBL Live 660NC supports Google Fast Pair, allowing immediate connection to your Android device -ambient sounds around you, making it safer to walk on busy streets while wearing headphones. -The internal battery has been slightly increased to 750 mAh and provides up to 50 hours of autonomy with the ANC system off, or 40 hours with ANC. JBL also claims that the battery can go from completely empty to full charge in two hours, while a quick 10-minute charge provides up to four hours of operation. - Frequency Response: 16Hz – 20kH -Impedance: 32 ohm -Sensitivity: 97dB SPL@1kHz/1mW -Maximum SPL: 94dB SPL -Microphone sensitivity: -19dBV@1kHz/Pa -Bluetooth version: V5.0 -Bluetooth profile version: HFP V1.7, A2DP V1.3, AVRCP V1.6 any questions please feel free to ask.