The image features two primary electronics accessories used for power management and charging: a universal AC battery charger and a DC mobile charging adapter with alligator clips.

Universal AC Battery Charger On the left is a "Necessary 360" brand universal AC/DC battery charger, also referred to as a "desktop" or "crane" charger.

Purpose: It is designed to charge removable lithium-ion batteries from devices like older mobile phones or cameras.

Design: It features a spring-loaded slider to hold various battery sizes and adjustable metal pins that align with the battery's contact points.

Power Source: It typically has a built-in AC plug on the back for direct connection to a wall outlet.