DD ddHiFi TC28i (M2) Lightning OTG to USB-C Adapter - Discontinued xlr-4 female but still have huge noise

but still have huge noise at the rectification frequencies and at multiples 50Hz

000 Hz Nominal sound pressure level 96 dB Sound coupling to the ear Circumaural (around the ear) Cable & Plug 3 m coiled cable (250 ohms) EAN 4010118459030 Comparison

and Wind Noise Reduction Structure will give you a clear and natural conversation throughout the call

vary as much as 15% (or 78ohm-103ohm

DD ddHiFi TC28i (M2) Lightning OTG to USB-C Adapter - Discontinued xlr-4 female but still have huge noiseConverts devices with USB C connectors to Lightning Supports: 1. Use of a portable audio decoding headphone with a USB C interface to listen to music 2. Use of a headphone cable with a USB C interface to listen to music, control the line, record with the microphone, and send voice messages Does NOT support: 1. Use of a headphone cable with a USB C interface to make phone calls and voice calls via APP 2. USB C thumb drives, keyboard, and other digital