Audio converter LS20 Apple dual Lightning digital support microphone with original interface earphones charging current 2A1. Audio converter frequency response: 20~20000Hz.2. Sensitivity: 116dB±3dB.3. Audio plug: Lightning interface.4. Size: 30*22*9mm. Weight: 2g.5. Microphone: converter supports iPhone original Lightning interface earphones.6. Wired control: converter supports iPhone original earphones.7. Audio converter charging port: Lightning interface, charging current 2A.