LS18 dual Lightning digital audio converter supports original Apple earphones microphone and wire control1. Frequency response: 20~20000Hz.2. Sensitivity: 116dB±3dB.3. Audio plug: Lightning interface. Product sizes: 95*17*9mm.4. Product weight: 11g. Microphone: supports original Lightning interface earphones.5. Wire control: support Apple original headset.6. Charging port: Lightning interface. Charge current: 2A.