Set contains 2 radios, 2 chargers, 4 batteries, 5 battery clips, and 2 brand new ear pieces. Estimated talk range for RDM2070d is up to 220,000 sq ft (inside steel/concrete industrial buildings) and up to 13 floors (inside multi-level buildings). 7 Channels. Frequency Range 400 470 mhz. The sturdy design complies with military regulations and can be dustproof, windproof, shockproof, shockproof and other adverse conditions.