The Smok SLM Pod Kit is a pen-style pod system kit which is very easy to use and carry. It is powered by 250mAh built-in battery which is powerful and durable for its mini size. Equipped with an intelligent LED indicator, you can see the battery status clearly. The SLM is an air-activated pod device, so you can enjoy vaping directly with no fire key design. The pod cartridge features 0.8ml e-juice capacity and easy side refill design.