Graphene-enhanced sound: Pioneering audio technology delivers highly accurate sound with superior clarity, charging case, bluetooth 5, 20 hour playtime, touch control, graphene enhanced sound, noise-cancelling microphones, and secure fit Crystal-clear calls: Listen and talk through both earpieces, noise-cancelling microphones eliminate background noise and enhance voice pick-up for flawless communication 20-Hour playtime: 5 hours playtime from a single charge and 15 extra hours via the charging case Integrated touch control: Use the earbuds to answer calls and play, pause, and skip music on-the-go What you get: Liberty air true-wireless earbuds, charging case, XS/S/M/L Ear Tips, 60 cm micro USB cable, user manual, 18- month warranty, and friendly customer service Advanced audio - The graphene-coated drivers eliminate distortion to produce sound with enhanced accuracy and outstanding clarity, enjoy detailed highs, bright mids, and satisfyingly deep bass Enhanced voice pick-up - Two built-in microphones with uplink noise cancellation filter out external noise to boost clarity and quality, your voice sounds ultra-clear even when you�re walking down a crowded city street or on a packed train to work