The ClearSounds CS-IL40 Portable Telephone Amplifier attaches to corded phones so you can increase the incoming volume of any call and feel confident in your ability to communicate.
    The ClearSounds CS-IL40 Portable Telephone Amplifier is light and compact making it easy to carry so you are prepared to talk anytime. And its easy installation will have you hearing clearly and communicating more completely in no time.

• Compact size designed for easy transport.
• Quick and simple installation gets your connection going fast.
• Volume Control and Boost Button boost incoming volume up to 40 dB.
• Tone Control allows you to "shape" sound to match your hearing needs.
• Compatible on 99% of telephones.
• Connects to corded phones with dial pad in base. (Not designed for cordless and trimline phones.).
• Dimensions: 3-7/8"w x 2-1/2"h x 1-1/3"d.
• Requires 9V battery which should last 35 - 40 hours (included).
• One-Year Manufacturer Warranty.