This is a a light weight LiFePO4 battery pack. It's in the same form factor as the popular 12V 7Ahr Lead acid battery, only half the weight and 30% more power!
YDLIDAR G4 LIDAR is a 360-degree two-dimensional laser range scanner (LIDAR)
This is a direct drive 4WD programmable Arduino robot platform for indoor robotics. Using 4 Nexus mecanum wheels, it can vector in any direction.