Specification:Brand: AnkerModel Number: A3951Z11Connection Type: WirelessWireless Connectivity: BluetoothTrue Wireless: YesHeadphone Fit: In-EarColor: BlackSound Isolating: YesProduct Dimensions: 4.61 x 2.4 x 6.73 inchesBatteries: 1 Lithium Polymer batteries reqFeature: Pure Sound via Targeted Active Noise Cancelling: Choose your scenario via the Soundcore app and listen as ambient sounds disappear to leave you with nothing but pure sound.PureNote™ Driver Technology: Get a 45% boost to your bass, and a 30% wider frequency bandwidth than ordinary drivers. Drivers coated with 10 hardened nano-layers offer incredible stiffness to generate stunning accuracy and clarity.HearID Personalized EQ: To ensure a perfect listening experience, HearID intelligently analyses your unique hearing profile and creates a tailor-made sound setup just for your ears. Or take complete control of the sound with the adjustable EQ or 22 preset sound profiles.Up to 26 Hours of Playtime: Get 7 hours of playback from a single charge on the earbuds with up to 3 recharges from the charging case.Clear Calls: 6 noise-cancelling microphones with noise reduction ensure your voice is isolated and transmitted in high-clarity for a face-to-face experience.Anker Soundcore Liberty Air 2 ProAnker Soundcore Liberty Air 2 Pro are an incredibly advanced pair of wireless earbuds. With up to 26 hours of total play time off of one charge, you can experience your favorite music at all times of the day. Purenote technology allows for a higher quality listening experience, active noise cancelling technology cancels out outside noises intelligently, while HearID provides EQ customization. All three come together to make sure your listening experience is truly yours...