Two wireless Handheld Microphones with balanced output. Multi-channel high band anti-interrupting wave thereby eliminating interference successfully. PLL-synthesized fixed, working separately even if used even at the same time. Compounding design to expand the effective range. Eliminates feed-backs and noise and mostly reduces the chance of interference. Perfect performance gear for church, musical concerts and many more. DH-744 wireless microphone system is a good quality wireless microphone design for users who require professional performance and budget solutions. The system delivers perfect sound by using a low interference UHF frequency band, and it is strong and reliable to meet various usages from large crowded shows to official use.