Ever got a chance to shoot a video using a digital camera or a smartphone? One of the common problems faced by those who have is that it is very difficult to get good quality audio recording if you have to stand at some distance from the camera. It is audible, but not as well as it would have been of you had a professional audio recorder. It is to tackle issues like these that Neeraj Kapoor has come up with this innovative DIY technique making a microphone for recoding videos with good quality sound. All you need is a water pipe, some tape or cloth to cover the pipe, whatever device you are recording with, and that’s it – your microphone is ready in less than Rs. 500.