Dahua Technology HAP301, Microphone, Universal, Dahua, Silver, Aluminum, 118110.2" (3000 m) Dahua Technology HAP301. Type: Microphone, Placement supported: Universal, Brand compatibility: Dahua. Connectivity technology: Wired. Rated power: 0.72 W, Power consumption: 60 mA, Power source type: DC. Diameter: 2.76" (7 cm), Height: 0.827" (21 mm), Weight: 3.88 oz (110 g). Quantity per pack: 1 pc(s), Package weight: 5.64 oz (160 g), Package type: Box