The Rotolight Sound & Light Kit includes the award winning Rotolight RL48 LED 'Ringlight' and Roto-Mic 'Broadcast-Quality' condenser shotgun microphone for use with DSLR cameras and camcorders. Adjust for both loud and soft sound sources with the three position level control (-10dB / 0dB / +10dB), and eliminate 'rumble' using the two step high pass filter (80hz / flat). The RL48-B LED Ringlight provides soft, diffuse 'continuous' lighting for both video and photography, delivering that classic 'Ring-Light' effect without 'Red Eye' or shadows, and simply slips over the Roto-Mic (or mounts on the hot shoe).