20 meter accessible reception Signal to noise ratio: 64DBM adaptive noise reduction Frequency response range: 20-20KHZ 5 hours Battery Life Compatibility with Lightning – iPhone Clear timber, Highly sensitive Input voltage: DC 4.8-5.2v Battery capacity: 60mAh Transmission delay: 30MS Sensitivity: -75DB

About this item Easy Plug & Play, no APP is needed: The upgraded wireless lavalier microphone is more professional, No Adapter/Addtional APP/ Bluetooth Needed, Just Plug The Receiver into Your iOS Devices and Power on the Micphone Then Start Recording (Auto-Connected & Sync) Long-distance transmission and long working hours: The lapel microphone built-in rechargeable batteries up to 8 hours Operation Time when it is fully charged. And 65ft Working Distance without Cable (If the transmission distance between the microphone and the receiver is blocked by walls or the noise is too loud, the transmission distance is about 40ft). You can plug type-c into the receiver through to power the phone. If the phone is out of power during the live broadcast. Compatible with iPhone/iPad with lightning connectors: The wireless lavalier microphone for iPhone can work with iPhone 7, 7 Plus, 8, 8 Plus, X, XR, XS, XS Max, 11, 11 Pro, 11 Pro