The BOYA BY-BM2021 is a super cardioid video shotgun microphone, which offer much better sound performance than using smartphone,tablets,cameras, camcorders built in microphone. With both TRRS and TRS audio connector cable included, it compatible with mostly smartphone, tabelts, DSLRs, camcorders which has a 3.5mm mic jack. Unique supercardioid polar pattern, it tight pickup area focuses directly in front of the microphone and reduces other surrounding sounds, ensuring that your subject is isolated from any background noise. Reinforced ABS construction at only 63g, the microphone always keeps your setup super lightweight, making it ideal for handheld shooting. Without any complicated switches or settings, its mainly powered by cameras, camcorders or smartphone, PC external microphone input, requiring no batteries to operate.