Voice over LTE (VoLTE) Active noise cancelling with dedicated mic Built-in cooling fan Hongxin R2 gaming chip CUBE Energy Cube ICE 11 multi-dimensional stereoscopic cooling system Built-in centrifugal shark fin fan with up to 20000 rpm 2068 mm 3D dual-pump VC liquid cooling system Aviation aluminum middle frame Super soft and high thermal conductivity rare earth graphene under the screen Composite graphene Copper foil under the screen Superconducting copper foil High thermal conductivity gel