Features ? Accessory for 29111 & 29115 Series Cordless Phones ? Amplified Volume up to 40dB gain ? Amplified Ringer up to 85dB ? Large Backlit LCD with Oversized Numbers ? Hearing Aid Compatible Make the telephone easily accessible throughout your house! This is a perfect accessory to add to your GE DECT 6.0 Big Button 29111 and 29115 Amplified Cordless Telephones. Buy one as a back-up so you always know you have a charged phone available. Or, keep the base unit with answering machine in a central location, and place one or more (up to 4 handsets total) of these Expandable Handset units in other locations throughout your house. No more running up and down stairs or from room to room searching for a single handset, only to find that it?s discharged. This expandable handset is equipped with great features for the hard of hearing as well as those with low vision. (See details below.) Note: This handset does not operate independently. It works ONLY as an accessory to GE DECT 6.0 29111 and 29115 Amplified Cordless Telephones. Gray/Silver. What is DECT 6.0? Experience the superior cordless telephone quality of DECT 6.0 interference-free communication. Digitally Enhanced Cordless Technology utilizes a dedicated bandwidth that avoids interference from electronics around your home, giving you crystal clear sound. Superior Volume Output? Adjust the volume of the incoming voice to your desired level. For mild, moderate, or severe hearing loss ? up to a 40dB gain with maximum output of 104dB SPL (Sound Pressure Level.) Customized Tone Control? Adjust the frequency of the incoming voice to your unique hearing needs. For high, medium or low tonal enhancement ? providing a crystal clear, easy to understand voice. Features: Amplified Volume up to 40dB gain Amplified Ringer up to 85dB Call Waiting Caller ID One-Touch Tone Control Do Not Disturb Extra Large Backlit LCD with Oversized Numbers