Scope of delivery:2x PATONA Premium microphone,1x PATONA Premium transmitter 1 storage bag,1 USB-C cable, 1x QR code for instructions The PATONA lavalier microphone (also known as a clip-on or tie microphone) is a small, portable microphone that can be attached to clothing near the mouth of the speaker or performer. Our lavalier microphones are omnidirectional, which means they can pick up sound from all directions. At 6 grams each, PATONA lavalier microphones are lightweight, discreet and unobtrusive to increase comfort and minimize visibility. Our microphones are attached to the collar, tie or lapel using a clip. The microphones are wirelessly linked to a transmitter that is plugged directly into the iPhone. Note: The transmitter is plugged into the iPhone's Lightning connector. To charge the iPhone, please connect your conventional charging cable to the Lightning connector on the transmitter. Technical data: Power: DC 5V 1A Radio frequency: 2.4GHz - 2.44GHz Receiver connection: Lightning (iPhone, iPad) Working current: 11mA Standby power: 55uA Response frequency: 20Hz 20KHz Sensitivity: 35dB Sampling rate: 48K Signal-to-noise ratio: 75dB Power supply for the microphone: built-in Li-Polymer battery with 50mAh Charging: USB-C port ( microphones) Lightning ( transmitter) Weight per microphone: 6g Weight transmitter: 2g Dimensions microphone: 54 x 14 x 18mm Dimensions transmitter: 45 x 2.7 x 6mm