The YiHi SXmini Mi Class is the first pod system device from SXmini, powered by the YiHi SX290 chipset. Manufactured from stainless steel with a photochemical etching process, the Mi Class has an amazing, high-end design. The device is powered by a 400mAh built-in battery and its working wattage range is 7W to 13W. The Mi Class uses a 1.8ml replacement pod cartridge that is easy to refill, while the ceramic coil is 1.0 ohm resistance. Sporting an LED display, the device is extremely simple to use with a one-fire button design. There is a micro USB port for easy charging. Overall dimensions for the SXmini Mi Class are 20.6mm by 85.5mm by 20.2mm.