Ylyycc Multifunction Loudspeaker Microphone Portable Wired Voice Amplifier for Teachers or Saleman Etc Small volume, light weight, easy to carry; Connection plug: 3.5 mm (bend) Connect loudspeaker, laptop microphone's interface directly; The sound recording is clear The microphone arms can bend, adjust the position It is suitable for such application as teaching, Flow training & visiting, present performance and sales promotion in store supermarket or flow sales stand