The Lark M1 has three volume levels: high, medium, and low
● Press the "+" or "-" button on the receiver twice to adjust the volume to the high or low level.
● Then press the "+" or "-" button on the receiver once to adjust the volume up or down by one level.
● Press the "+" or "-" button on the receiver twice to adjust the volume to the high or low level.
● Then press the "+" or "-" button on the receiver once to adjust the volume up or down by one level.