Type-c mobile phone, iPhone mobile phone, 3.5 heads all-in-one multi-purpose: noise reduction, reverberation, monitoring, input, automatic connection, can be used for mobile phones, computers, tablets, speakers, amplifiers, cameras and other equipment.

Microphone: Digital silicon mark Input voltage: 5V Microphone battery: 300MAH Receiver battery: 300MAH Battery life: 12 hours Signal-to-noise ratio: 64DBM Transmission delay: 30MS Sensitivity: -42DB Frequency response range: 20-20KHZ Transmission distance: 15 meters without obstacles