An in-line amplifier that boosts incoming calls up to 100 times the normal volume (+40 dB). Portable unit includes slide controls for both volume and tone. The tone selector amplifies specific frequencies for optimum speech clarity and distinction between similar sounding words. A special boost button maximizes amplification while blocking out feedback and background noise. Unit is compatible with most home and office telephones and is easily connected between handset and phone base.
Battery included Designed for people with mild to severe hearing loss

• Increases incoming sounds up to 40 dB louder
• Adjustable tone control amplifies specific frequency range for sound clarity and distinction between similar sounding words like "chair" and "share"
• Compatible with most home and office telephones
• Connects easily between handset and phone base, no wiring involved
• Compact and portable, take it with you everywhere
• Battery included