An electrical equipment system includes electrical equipment, a battery pack with a wireless communication function which is mounted to the electrical equipment, and a portable terminal wirelessly communicable with the battery pack. The electrical equipment includes a drive part, a control part which controls the drive part, an operation part which instructs start and stop of the drive part, and a storage part which stores operation parameters for driving the drive part. Various operation parameters, such as an operation amount of the operation part for starting the drive part of the electrical equipment, are configured to be changeable by a management application installed in the portable terminal.

A wallet includes a first metal shell with one or more openings on a shell perimeter adapted to clip one or more objects to the one or more openings; a second metal shell coupled to the first shell with a storage compartment therebetween; and securing a soft material to the first and second metal shells, wherein the soft material comprises compartment to store cards or money therein.

A tool clip for attaching a power tool to an item worn by a user. The tool clip includes a first piece having inner and outer parts joined by a bend. The tool clip further includes a second piece having inner and outer parts joined by a bend. The second piece includes a release tab which passes through a slot in the first piece to engage the first and second pieces with each other. The first and second pieces each have a mounting hole such that a screw can be passed through the mounting holes and into an existing hole in the power tool.