6 Pack of Motorola RDU4100 Two Way Radio Walkie Talkies with Speaker Mics and 6-Bank Charger 6 Pack of radios, speaker mics, and a 6-bank charger. Each radio comes complete with a single-unit charger, 18.5 hour lithium ion battery, belt clip and 1-year warranty. UHF, so work well both inside and outside. The speaker mics make communication louder and more mobile. Clips onto your employee's shirt. You can both receive and transmit with these speaker mics. Radios come pre-packaged with single-unit chargers, but 6-bank charger makes it easier to charge all your radios in one spot with fewer wires. This radio has the best possible range and battery life for any Motorola radio we carry. Super high quality and loved by customers.