- Works with analog or digital telephones
- Portable, lightweight, take it anywhere
- Connects easily between the phone base and handset
- Adjust the high-frequency sounds to a desired listening level
Will increase your telephone volume up to 20 times. Easy to install with any telephone at home or office. Required a 9-volt battery (not included).
- Low battery light indicator
- Easy to use volume slide
- Power button to prolong the life of the battery
