TYT 8000D Device power is 10 watts. Device range within the city is 2 to 5 kilometers. Device range in open areas is 5 to 10 kilometers. Battery size is 3800. If fully charged, it lasts for 30 hours. It operates on two frequencies: Special frequency from 400 to 520. General frequency from 136 to 174. General channel 145. Device accessories: Short antenna. Long antenna for long distance. Base charger plus a Type-C charging cable for communication. (The mobile number appears when you press the contact button)