Noise Reduction 2.4GHz 2 PCS Wireless Lavalier Microphone, with Charging Case. This innovative wireless lapel microphone is easier to set up. No adapter, Bluetooth or Application required. Just plug the receiver into your devices, turn on the mic and then they will pair automatically. Working time: 4-6 hours. Battery for Charging case: 600mAh. Working distance: 20 meters (barrier-free environment). Available in Type C or Lightning. Complies with CE, FCC, RoHS.