Transform your phone into a wireless mouse, keyboard and trackpad using WiFi Mouse. WiFi Mouse supports speech-to-text as well as multi-finger trackpad gestures. WiFi Mouse enables you to control your PC, MAC or HTPC effortlessly through a local network connection.
If you don't have AP(WiFi hotspot), you can use android phone/PC as hotspot.
Download - WiFi Mouse for Android , WiFi Mouse Pro version for Android
WiFi Mouse Server for PC
Remote Control Your Computer With Your Phone