These are high quality sealed Double Pole - Double Through (DPDT) relays. This relay's coil is rated for 5V. The nominal operating current is 80.6mA so it will need additional circuity to close the relay with a microcontroller like an Arduino or SBC such as a Raspberry Pi or BeagleBone Black.
These are high quality sealed Single Pole - Double Through (SPDT) relays. This relay's coil is rated for 5V.
This is a MLT-JR tracked robot platform and is equipped with 32mm motors, a motor controller, and Spektrum remote control. Robot chassis painted with Tactical Tan bed-liner. Robot handles up to 5lbs of additional payload, travels up to 78 fpm.
YDLIDAR X4 LIDAR - 360-degree two-dimensional 10 meter laser range scanner (LIDAR).