Product Description Epiq is packed with food-grade materials, a premium rechargeable battery, a smart UI and air sensor activation. What makes Epiq so powerful is that all of this fits comfortably into a delicate and sleek design. Epiq is designed to be as powerful as it is beautiful and always within reach of your customer.   Product Specifications Battery Shell: Stainless Steel/Anodized Aluminum Shell Finish Options: Painted/Soft Touch/Water Resistant Print/Engraved Battery Capacity: 290 mAh Lithium Ion Output Voltage: 3.2 v (Constant) Inhalation-Activated (Airflow Sensor) Charging Port: Micro USB Coil Type: Cotton Wrapped Ceramic Air Channel Tube: Stainless Steel 304 Reservoir Material: High Borosilicate Glass Reservoir Cap Material: Polydimethyl Vinyl Blended Silicone Mouthpiece Material: HBi59 Low Lead Brass - LF