USB charged or powered small equipment are my favorite. One may feel psychologically safe due to the low voltage (5V). They also offer great convenience and portability when you are away from domestic power supply. Have a look at my collections.
USB charged or powered small equipment are my favorite. One may feel psychologically safe due to the low voltage (5V). They also offer great convenience and portability when you are away from domestic power supply. Have a look at my collections.