2 Pack of radios and associated accessories. Each radio comes complete with an external speaker mic, single-unit charger, 15 hour lithium ion battery, swivel belt holster and 1-year warranty. Covers up to 250,000 square foot range or 20 floors. Set to factory default UHF frequencies (good for both inside and outside use). RMU2040 is direct replacement to RDU2020. Very reliable, simple, heavy-duty radio that is popular with a variety of different industries. 15 hour battery life. 4 channels (2 activated out of the box). Two-pack of Motorola RMU2040 radios with speaker mics. Each radio comes complete with a single-unit charger, 15 hour lithium ion battery pack, swivel belt holster and 1-year warranty.