BOYA BY-DM20 Dual-Channel Digital Stereo Condenser Microphone with USB-C, Lightning and USB-A Connectivity, Omnidirectional, 25Hz-20kHz, for iOS, Android, Windows, Mac

Capture broadcast-grade stereo audio with the BOYA BY-DM20, a dual-channel digital condenser microphone that records at up to 24-bit/48kHz resolution. Its omnidirectional pickup pattern and extended 25Hz-20kHz frequency response deliver natural, room-filling sound for interviews, vlogging, podcasting, and mobile filmmaking.

Overview

The BY-DM20 is a compact, device-powered microphone that connects directly to your smartphone, tablet, or computer via USB-C, Lightning, or USB-A. It features two 3.5mm TRS inputs for external lavalier or shotgun microphones, plus a 3.5mm TRRS headphone jack for real-time monitoring. Independent gain controls for each channel let you balance levels on the fly, while the included fur and foam windshields reduce wind noise and plosives in outdoor or close-mic situations.

What stands out

• Dual-channel recording with independent gain control for each input
• High-resolution 24-bit/48kHz digital audio over USB-C, Lightning, or USB-A
• Omnidirectional condenser capsule with a wide 25Hz-20kHz frequency range
• Two 3.5mm TRS microphone inputs and a 3.5mm TRRS headphone monitoring jack
• Durable aluminum alloy housing with included fur and foam windshields
• Plug-and-play operation—no drivers or batteries required

Technical details

• Microphone type: Digital stereo condenser
• Polar pattern: Omnidirectional
• Frequency response: 25Hz-20kHz
• Sensitivity: -30dB ±3dB (0dB=1V/Pa, at 1kHz)
• Signal-to-noise ratio: 80dB
• Sampling rate: 44.1kHz / 48kHz
• Bit depth: 16-bit / 24-bit
• Output connector: USB-C
• Input connectors: 2 x 3.5mm TRS (external microphones)
• Headphone monitoring: 3.5mm TRRS jack
• Compatibility: iOS (Lightning), Android (USB-C), Windows/Mac (USB-A)
• Power source: Device powered
• Construction material: Aluminum alloy
• Included cables: USB-C to USB-C, USB-C to Lightning, USB-C to USB-A
• Included windshields: Fur and foam

Our verdict

The BOYA BY-DM20 is a versatile, high-resolution dual-channel microphone that punches above its class. With universal connectivity, independent gain controls, and robust construction, it's an ideal tool for content creators who need reliable stereo capture on any device.