The Ledlenser iF4R Music is the iF4R work floodlight with a built-in Bluetooth speaker, so you can connect your phone and use it as a site radio while it lights the job. Like the iF4R it gives up to 2,500 lumens with five brightness settings, controlled with a multi-function switch, and runs for up to 15 hours. A built-in magnet attaches it to steel beams and other metal surfaces, and the large, tough handle makes it easy to carry around site. It charges via the magnetic charge system in about 6 hours. The housing is splash and dust protected (IP54) and drop tested to 1 m. It measures 235 x 110 x 47 mm and weighs about 1,139 g. Supplied with a magnetic charging cable and 2.4 A USB adapter.