... . 7, The a function: Can hear the scene pronunciation.persen action sound such as walking about, digging ... , prying limpidly. 8, Scene correct talk function:can shout words,duplex operation correct ... talk to scene personnel. 9, Lead plane interruption of power ... parameters: 1, the host box (L * W * H): 120 x 65 x 35mm. 2, the use of ...