Brand Name : UlanziTransducer : Condenser MicrophoneSet Type : Transmitter SetsStyle : Lavalier MicrophoneUse : Home StudioOrigin : Mainland ChinaPackage : YesModel Number : Ulanzi J12Polar Patterns : OmnidirectionalCertification : CE,FCC,RoHSCommunication : WirelessProduct weight : 69gTransmitter Weight : 8.5gReceiver Weight : 4gMaterial : ABSTransmission distance : 20m/65ftSound delay : 25m/sHeadphone monitoring : supportEndurance : 6hRechargeable case battery capacity : 800mAhTransmitter battery capacity : 80mAhMic transmitter endurance : 6-7hCharging case charging : 4-5 timesAdapter : 5V/1ACompatible : PC/LaptopNotice: This product is available in both Android and IPhone versions, please pay attention to choose the correct version, if you want to use it on both devices at the same time, you need to buy an adapter (I don't sell this thing)Ulanzi J12 Wireless Lavalier Microphone System ParametersBrandUlanziModel: J12Product weight: 69gProduct material: ABSTransmission distance: 20m/65ftSound delay: 25msHeadphone monitoring: supportEndurance: 6hTransmitter battery capacity: 80mAhRechargeable case battery capacity: 800mAhAdapter: 5V/1AConnection mode: automatically connected when the power onPackage List:Box * 1Mic transmitter *2Receiver *1Charging cable *1How to use ?Step 1:Android Phone need Download third-party app,Like opencamera cinema-FV and other apps you like.Step 2: Plug the receiver into the phoneStep 3: Turn on the mic transmitterStep4:wait for connect then use it .* Note: OPPO/VIVO/IQOO/Realme and other brands of cell phones need to go to the settings to search "OTG"and open it, then can be used normallyif you want to use it on pc and laptop,pls use USB-A to USB-C adapter(not included )