This watch--equipped with a built-in 22-channel walkie talkie--allows you to keep in touch easily with friends and family whether you¿re at an amusement park, the beach, the park, the mall, or simply at opposite ends of the house. When you speak into the voice-activated microphone, your words will be beamed straight to the built-in speaker of any other user within a 2-mile radius whose watch is set to the same channel. The voice-activated watch gives children freedom, flexibility, and security; and parents enjoy peace of mind while keeping in constant contact with their children. A call alert sends a distinct tone to notify another user that you are calling. Includes earbud with built-in microphone and AC charger for built-in rechargeable batteries. Running time on a single charge is 2 hours, with 25 hours standby time. Channels 1-14 are FRS, 15-22 are GMRS. 2 1/2" L x 2 1/2" W x 8" D.