... 650mAh/900mAh/1100mAh battery capacity 2)Penstyle ego w(f1) 3)No leakage,no burn smell 4)rugged ... looks like a pen. 1.The advantage of ego w(f1) electronic cigarette: 1) vapor stable larger ,no burning ... inhaler clean,more convenient to carry. 2.ego w(f1) specifications Model ego wStarter Kit component 2 pcs atomizers ... e-cigarette, tank e-cig, ego, ego ce4, ego-c, ego-w, ego-t, elips and all kinds of ...