There is no button on the ecig you just use it like you would a cigarette and the end lights up red during use once the battery is drained it will flash indicating it needs charging

Battery life very surprised got a day of moderate vaping fantastic considering its size approx the same as a cigarettethe vape great flavour and a fairly big cloudthis item would be great for someone finding it hard to adjust to the larger standard ecigs that you see everywhere amazingly it is rebuildable holds a good amount of liquid and the vape is smooth

My wife has actually taken this one from me as its perfect to take on a night out in her clutch bag