The PX500 Cobra Pro Business Radios can cover up to 250k sq. ft. and 20 floors. Powerful with 1 Watt TX output. License free and no programming needed. Full featured with VOX hands-free operation and water resistant IPX2 rating. Long lasting use with 12-hours of operation and a Li-Polymer 3.7V, 1000mAh battery. Includes 360-degree swivel holster, dual drop-in charger, USB wall adapter and charging cable.