The CD4027BM is a single monolithic chip integrated circuit containing two identical complementary-symmetry J-K master-slave flip-flops. Each flip-flop has provisions for individual J, K, Set, Reset, and Clock input signals.
This is a thermal printer like you would find on a cash register or adding machine. It will print simple strings passed to it via TTL serial, bitmap images (poorly) and it can generate several different formats of barcodes.
The Type-C USB Charging Discharging Boost Module is a DC-5V 2A, This is a high precision DC5V 2A Charge Discharge Integrated Module Type-C Input compatible with 4.2v/4.35v Lithium Batteries.