Ying's gadget is the Candela. The Candela is a grenade that deploys six flash bangs. It can be thrown or placed on a soft wall, a soft hatch, or on the floor in some place.
Lesion's gadget is the Gu Mine. He makes they during the round and can have a total of eight Gu Mines over time. When thrown, they become invisble, similar to Echo's Yokai drones. When attackers step on a Gu, they will take six damage every couple of seconds until it is pulled out. Also, they will lose the ability to sprint.