MINI INBOX 40W Specification Coil Resistance: 0.2Ω Size: 47.5(L)×23(W)×79.1(H)mm Battery Capacity: 1100 mAh Applicable to Atomizer Resistance Range: 0.15-2.0Ω Charging Time: ≤2H(Input DC 5V 1A) More key features on http://www.kimsun.com/product/mini-inbox-40w/ Company Facebook : https://www.facebook.com/KimsunEcig/?ref=bookmarks if you are interested in it and want to be the agent or wholesaler of my company ,please email us: [email protected]