Wireless Microphone, Lavalier Microphone, Wireless Bluetooth Microphone Available Compatible with Android/iPhone/iPad/PC, can be used by two people simultaneously. The build quality is very good. A very nice storage box. All the necessary conversion adapters are included. Points to note: The standby time is a bit short, and you need to speak close to the microphone for it to pick up sound. The instruction manual is not available in Japanese.