Specifications: Built in 1000mAh Battery Dimensions: 82mm x 39mm x 21mm Eliquid Capacity: 1.9ml Variable wattage output Short circuit protection Battery Indicator light Micro USB Charging Child resistant cap Top Fill Compatible with the Aspire ET BVC coils Automatic Cutoff Low Voltage Protection Overcharge Protection Over Heat protection Charge indicator light - Red = 3.5v - 3.8v, Blue = 3.8v - Fully Charged, Green = fully charged Package Contents: 1 x K1 Stealth Mod 1 x K1 Plus Tank 2 x Nichrome Coils (11.6ohm and 11.8ohm pre-installed) 1 x Metal connecting ring 1 x USB Cable 1 x User Manual 1 x Warranty Card The Aspire K1 Stealth kit comes in two discrete, understated colours, Silver and Black, with well-placed cut-outs enabling you to see, at a glance, the e-liquid level in the K1 plus tank. Aspire?s K1 Stealth Kit is truly palm sized being only 39mm wide and 21mm thick. The K1 Stealth kit also comes equipped with three wattage settings allowing the user to choose and output of 8, 10, or 12 watts depending on the preference for a warmer or cooler vape. The K1 tank also has replaceable 1.8ohm coils and is also compatible with aspire original BVC coils and Spryte coils. Both have adjustable airflow and the TPD version also has ?child resistant? features top and bottom.