“D Debra” is a brand that specializes in high-quality microphone and electronic audio products. They offer a range of professional and non-professional consumer audio products, including wireless microphones, mixers, and in-ear monitor systems. The brand’s concept is focused on creating products with both a gorgeous appearance and inherent high quality, appealing to both experienced musicians and newcomers. The Debra Audio AU400 4 channel wireless microphone system is known for its excellent sound quality, advanced anti-interference technology, reliable signal strength, and versatile applications. The package includes wireless microphones, a receiver, and accessories for a hassle-free setup.