JBL Tune 770NC Wireless Over Ear ANC Headphones with Mic Color:White The minimum and maximum circumference

The minimum and maximum circumference range between 140 to 206 millimeters

1 lens cap

550 Grams Batteries ‎1 Lithium Polymer batteries required

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JBL Tune 770NC Wireless Over Ear ANC Headphones with Mic Color:White The minimum and maximum circumferenceFeatures Adaptive Noise Cancelling with Smart Ambient : Adaptive Noise Cancelling means zero distractions when its time to focus on your studiesor get your groove on. And if you want to hear the world around you without removing your headphones, Ambient Aware and Talk Thru sharpen the sounds of your surroundings or voices. Easily activate these Ambient Sound Control modes through the JBL Headphones app Bluetooth 5. 3 with LE Audio (*) Wirelessly