MINI MONOPOD keystroke is not working with my LG Mobile model LG-X147 with Android version 4.4.2

[AC Question]

i have purchased the wired MINI MONOPOD and using it with my LG Mobile model LG-X147 with Android version 4.4.2 wired with mobile audio port but the keystroke of MINI MONOPOD is not working. Kindly suggest soln.