IQOS 3 DUO Kits have made many changes for users in the past year. In the new device, connectivity can be achieved via Bluetooth and user-installed applications.Weight has increased slightly in the product's body. Furthermore, a mini charger is provided to allow you to keep the device in your pocket. The device supports 35 sessions after it is fully charged. The IQOS 3 DUO Kits are proving to be a hit with IQOS users.