22 Channel radios with a 24 mile range. Call alert. Channel scan. Silent operation - turns off all tones. Auto-squelch. HI/LO power settings adjusts power transmission and conserves battery. Keypad lock. Powered by 3AAA batteries (not included) or rechargeable battery (included). 3-Year manufacturer limited warranty. Battery charger. DC and AC adapter. Belt clips. 2 Rechargeable batteries.