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Amplifies Listening Volume more than 3 Times Above the Normal Level
Rotary thumb wheel volume control
Increases incoming volume up to 20dB
Compatible with hearing aid telecoil
Provides clear, distortion free, reception
Replaces existing modular handset - square style only
Operates on two "AA" batteries (included)
Compatible with most standard and electronic phones, multi- or single-line
Colors: Ash, Pearl, or Black
One-year manufacturer's warranty
NOTE: Not compatible with Trimline, Princess style or cordless phones where dial key pad is in handset
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