See also:

Dual Tone Multi-Frequency (DTMF) Tones
The Bluetooth system can send numbers and the numbers stored as name tags during a call. You can use this feature when calling a menu—driven phone system. Account numbers can also be stored for u ...

Battery Replacement
To change the batteries: 1. Loosen the screw to the battery door located on the left side of the headphones. 2. Slide the battery door open. 3. Replace the two AAA batteries. 4. Replace the bat ...

California Proposition 65 Warning
Most motor vehicles, including this one, contain and/or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Engine exhaust, many par ...