The DMR107 site radio is compatible with Makita LXT slide-on batteries 7.2V, 10.8V, 12V, 14.4V and 18V and CXT 10.8V. (It is not compatible with G-Series batteries or Ni-CAD or Ni-MH batteries). An AC adaptor jack allows you to connect to the mains for power. The rugged case is dust and showerproof to IP64 rating. Elastomer bumpers protect the case from the inevitable knocks and bumps experienced in the work environment. When not in use, the flexible antenna stores safely inside the radio. The DMR107 features a digital quartz display. The radio has a frequency range of FM 87.5 to 180 MHz and AM 522 to 1710 KHz. An auxiliary input jack allows connection to an iPod, MP3 or music from a mobile phone. Two large 76mm speakers provide the listener with high quality stereo sound. The folding handle has a soft rubberised comfort grip.