· Durable, lightweight design--easy for employees to carry and hold all day, yet built to withstand everyday use· Operates on a four channels with a choice of 56 business-exclusive frequencies for enhanced voice quality, privacy and reliability· Keypad lock, audible call tones, "VOX" voice activated transmit with select audio accessories (not included)· 121 interference eliminator codes maximize choices through 83 digital and 38 analog private lines· Requires FCC license--compatible with Motorola Spirit GT, GT+, and XTN UHF radios