The Whirlwind WHH4NL 3.5 Line-to-Microphone Attenuator Cable measures 1' (30.48cm) long and is specifically designed to connect the line outputs on portable recording devices (such as the Zoom H4N and Zoom H1), to the microphone inputs on HDSLR cameras. The cable features -25dB of attenuation and a right angled connection at the camera's end for added convenience.