360-degree Audio And Video Audio Omnidirectional Microphone $ 15.67 Product information: Color: Black Frequency range: 100HZ-20KHZ Battery life: 8-12 hours Applicable objects: home, computer, meeting dedicated Packing List: product manual warranty card Channel: 2 Overall size: 45*45mm With holder or not: None Packing list: Microphone+ Product Manual + Warranty Card Product Image: