Product Overview: One add-on mini audio box for all Camera which need audio function High Sensitive microphone and 12V power regulator built-in box Plug & Play Extremely Sensitive Great for Security Monitoring Higher S/N Ratio Range: 150 Square metres Red wire ---Power+ Black wire - Power- S- Black signal S+ Green signal Technical: 1.Work Voltage: 4-14V 2.Work current: 5mA-60mA 3.Sensitivity:200mA/ubar 4.Frequency: 100-6000Hz 5.Max output Voltage:5V-upp Packaging included: 4pcs x Mini CCTV Audio Microphone Mic For Security IP Camera module Warranty Term: One Year Warranty Don't include the IP board, if you need, please contact us. Payment: 1. If you need to buy more goods, but the price is not cheap enough, or you did not find them in our store, please contact us! 2. Buyers response for all tax or VAT under any circumstances. Shipping: 1. The item will be shipped within 1-3 business days after payment. 2. All products have been checked and packaged in good condition before dispatch. 3. We provide 12 months Warranty, if the item is defective, please notify us within 5 days of delivery. We provide replacement service for defective items. Feedback: 1. We will do a positive feedback automatically after receiving your positive feedback. We would appreciate your positive feedback. 2. If you are not satisfied with our product or service, please E-mail me with your problem before leaving a negative/neutral feedback or open a dispute, we work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers. We care about our valued customers, and will always be willing to help you. So if you have any problems, please E-mail us immediately.