Lid - The VIBE Lid is designed to prevent leaks, is free from BPA, and effectively keeps out any unwanted liquids. 18 OZ Tumbler - The VIBE Tumbler is made of 18/8 stainless steel and has double walls for insulation, keeping cold drinks cold for up to 24 hours and hot drinks hot for up to 8 hours. Additionally, it features a powder coating that provides a slip-resistant grip and long-lasting color. To charge your device, connect it to one of the Powerbank's USB-Type A output charging ports using a compatible charging cable. You can charge up to 2 devices at the same time using the Powerbank's USB-Type A output charging ports.