The Ursa comes with two refillable pods, which look identical at first glance, but are actually quite different. The standard Ursa Pod Tank holds up to 6ml of e-liquid, comes with a replaceable 510 drip tip, and is compatible with Lost Vape`s UB (Ultra Boost) coil-heads.I prefer using the Ursa Baby on the other airflow setting as that`s where I feel it really shines. The flavor is excellent and the draw is a good MTL draw. The pod life is also great. You can easily expect two weeks out of each pod and maybe more depending on how much or how little you vape. To operate the Lost Vape Ursa Mini Pod Kit carry out the following button sequences. 1.Press the fire button five times to turn the device on or off. 2.Hold the fire and the + button together to lock or unlock the device. 3.Hold the fire and the – button together (3 secs) to reset the puff counter.