B a s i c u s e11To use the boom, gently pull it down toward your mouth (1), or push itup to its initial position (2).■ CallsTo make a call, use your mobile device in the normal way when theheadset is connected to it.To redial the number you last called (if your mobile device supports thisfeature with the headset), when no call is in progress, press the answer/end key twice.To activate voice dialling (if your mobile device supports this featurewith the headset), when no call is in progress, press and hold theanswer/end key for about 2 seconds until the mobile device starts voicedialling, and proceed as described in the user guide of the device.To answer a call, pull the boom completely down toward your mouth, orpress the answer/end key. (For noise cancellation, the boom has to becompletely pulled down.) To reject a call, press the answer/end keytwice.To end a call, push the boom up to its initial position, or press theanswer/end key.■ Adjust the headset volumeThe headset automatically adjusts the volume according to ambientnoise. Slide the volume key up to increase or down to decrease thevolume. To adjust the volume quickly, slide and hold the key.The selected volume level is saved for the device that you currently usewith the headset.