Globalşarj is a napkin holder design that has a phone-charging system, and a button for calling the waiter with ease. 

The battery-powered device includes a button for calling the waiter, two outputs with multiple sockets (micro-USB, lightning and c-type) for phone charging, a coin input to activate the charger and a screen to display the charging process.

The device is designed for easy maintenance, so the back lid is built with hinges and a lock. The button is on the top and has an indicator design around it, to be remarked easily.