Mikroe Volume Click provides complete digital volume control and features the Cirrus Logic CS3310 stereo digital volume control. The Volume Click can controls two independent low distortion audio channels with an adjustable range of 127dB, in 0.5dB steps. This is achieved through 95.5dB of attenuation and 31.5dB of gain. The board has an SPI serial interface that accepts 16-bit data and offers low distortion and noise.