The Wireless Lavalier Microphones for iPhones iPad are compact and lightweight, with a lithium-ion battery included. They automatically connect to your device without the need for apps or Bluetooth. The microphone has a 4-5 hour working time and a 65ft range, with 360-degree omnidirectional pickup and noise reduction technology. It is compatible with Lightning interface devices and is ideal for interviewing, online conferencing, vlogging, and live streaming. The package includes 1 receiver, 2 transmitters, a charging cable, and a user manual.