Directions for Use 3. Lift off receiver, put next to phone. Set switch to headset . Dial friend's number. You'll hear caller but caller can't hear you.
Mute light blinks when in use.
Press mute again to turn off. Hang up receiver to end call. Slide headset hanger end into hole above SuperPro in use light. Use to hold headset. To connect SuperPro to a new phone, follow Step 1 of instructions.