You need not to pay a cent to buy any gadget. Its even mobile if you choose wireless transport. Millions of people have installed it and are using it daily for talking, recording, voice remote control and many other activities. The below diagram shows how it works. There are 3 components of WO Mic. WO Mic App which runs on phone. It captures your sound through phone microphone and transmits them to computer. WO Mic Client which runs on computer. It connects to app, receives voice data and forwards them to virtual mic device. WO Mic Virtual Device. It also runs on computer, though in kernel space. It receives voice data from client program, simulates a real microphone device, and provides audio data to applications like Sound Recorder. Main features. Wireless microphone without any cost. Can be used with any programs on computer just like REAL microphone. Very short lag. Easy to configure and use. Supports auto reconnection when your computer reboots. Support multiple connection methods Wifi, Bluetooth and USB Note it only supports Wifi connection on i. OSAudio format 4.