Description: brand new and high quality. Feature: Made by high quality PCB components, durable, firm and stable for us to use. Transistor style HIFI microphone pre-amplifier. Sound volume adjustable suitable for all camera module. Specially made for all IP camera boards on our store. Microphone Module only, other accessories demo in the picture is not included! Specifications: Item Type: Microphone Module Working Voltage: DC9-12V Frequency Range: 200-10KHZ Monitor Range: 100m Transmission Distance: 1000m Material: PCB Length: 130mm/5.1in Color: As shown Quantity: 1 Pc Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x Microphone Module