Pair of two-way radios offers up to 35 miles of range, Push-to-Talk power boost, 11 weather channels, (7 NOAA) with an alert feature, 22 channels, 121 privacy codes, 10 regular call tones, built-in flashlight, emergency alert button, and iVOX hands-free communication. The radio detects your voice and transmits when you speak. The Emergency Alert feature can be used to signal members in your group for urgent help. Radios will operate in an automatic "hands-free" emergency control mode for a total of 30 seconds after activating the Emergency Alert. Radios in your group will automatically advance the speaker volume to the maximum setting and sound a warbling alert tone for 8 seconds. Radios include dual charger, charging adapter, two NiMH battery packs and two belt clips. Use rechargeable three AA batteries (sold separately) or NiMH Battery pack for each radio.