easy to use, Automatic Pairing, Automatically Connect When Plugged into the Receiver, No Adapter,Addtional APP,Bluetooth Needed. The red light on receiveing flashes;press switch key of mic, the indicator light turns green, then power is turned on; The red indicator light of receiver and the green indicator light of microphone always keeps on, then you can use the microphone to receive sound by opening phone camera, live App or other Apps.【Long-distance transmission and long working hours】High Performance Wireless Microphone, Signal stability. The lavalier microphone is built in 75MAH Rechargeable Batteries Up to 10 hours Operation Time. 20M/65FT Working Distance without obstacle.Dual Mics are the perfect option for recording a Conversation between to People , Adding Special effects, Mike comparers , Introductions and so on. Why restrict to single Mic ? - and You an use Dual set as single Set as well.. Just dont switch on the other Miceasy to use, Automatic Pairing, Automatically Connect When Plugged into the Receiver, No Adapter,Addtional APP,Bluetooth Needed. The red light on receiveing flashes;press switch key of mic, the indicator light turns green, then power is turned on; The red indicator light of receiver and the green indicator light of microphone always keeps on, then you can use the microphone to receive sound by opening phone camera, live App or other Apps.【Long-distance transmission and long working hours】High Performance Wireless Microphone, Signal stability. The lavalier microphone is built in 75MAH Rechargeable Batteries Up to 10 hours Operation Time. 20M/65FT Working Distance without obstacle.Dual Mics are the perfect option for recording a Conversation between to People , Adding Special effects, Mike comparers , Introductions and so on. Why restrict to single Mic ? - and You an use Dual set as single Set as well.. Just dont switch on the other Miceasy to use, Automatic Pairing, Automatically Connect When Plugged into the Receiver, No Adapter,Addtional APP,Bluetooth Needed. The red light on receiveing flashes;press switch key of mic, the indicator light turns green, then power is turned on; The red indicator light of receiver and the green indicator light of microphone always keeps on, then you can use the microphone to receive sound by opening phone camera, live App or other Apps.【Long-distance transmission and long working hours】High Performance Wireless Microphone, Signal stability. The lavalier microphone is built in 75MAH Rechargeable Batteries Up to 10 hours Operation Time. 20M/65FT Working Distance without obstacle.Dual Mics are the perfect option for recording a Conversation between to People , Adding Special effects, Mike comparers , Introductions and so on. Why restrict to single Mic ? - and You an use Dual set as single Set as well.. Just dont switch on the other Mic