Size: 3.22 x 1.53 x 0.7 inches (82 x 39 x 18mm) Maximum Pod Size: 0.55 inches diameter, 2.4 inches length (14mm x 61mm) Battery Capacity: 650mAh Voltage: 2.8V / 3.4V / 3.8V (1.8V Pre-heat) Charging: USB-C Resistance: 0.8-2.0 Ω Auto-draw functionality and manual button control Digital display and LED light indicator strip