Key Features

• Multiple configurations:
  D5500 - Standard
  D5505 - 5 Programmable Service Keys
  D5510 - 10 Programmable Service Keys

• Patented Volume Plus Button designed with features for the hearing impaired aiding 70% of elderly patients with high-frequency hearing loss (the Boost Button increases volume range to 27.5db)

• Built in CLEARING AID^® circuitry automatically adjusts frequency response for improved clarity. This is an aid to 70% of Patients with high-frequency hearing loss.

• FCC / ETL / UL / CE approved
• Full Range Volume Control (maximum amplification as allowed by law)
• Clearing Aid Voice Intensifier with Full-Range Thumbwheel Volume Control
• Desk/Wall Mountable (mount sold separately)
  
• Customizable Faceplate
• Non-volatile Memory (no batteries required)
• Extra Large Customizable Faceplate
• Hearing Aid Compatible
• Easy to wipe down, sleek profile, Lite Touch Keypad with No Wear / Non Rub Off keys
• 7' Handset Cord / 20' Line Cord (Fully Modular)
• Dual Tone Deep Pitch IC Ringer with 3 levels of control
• Extra Large Super Bright Ring/Message Waiting Indicator
• Flash Button
• High Luster, Euro Style, Rugged ABS cabinet with High Durability Components
• Lighted Hold Button
• Outstanding audio amplification quality
• Rotary Handset Volume Control plus additional Volume Plus Button on Base
• Very Large Faceplate Area
• Compatible With AC And DC Neon And Some LED Systems
• Microphone Mute Button
• Braille Locator On #5 Key
• True DTMF
• Constructed of High Impact ABS Plastic
• Easy Access Dataport
• Extra Heavy, Non-Slip Base provides a solid look and feel