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Serene Innovations SA-40

Use with your existing cell phone or smartphone to make your calls loud and clear.


  • Works with virtually any Bluetooth cell phone or smartphone
  • Amplifies up to 40 dB
  • Loud ringer with adjustable ringer volume control
  • Adjustable tone control tunes to the frequency you can hear
  • Latest DSP Technology eliminates static and distortion for easy listening
  • Built-in T-Coil mode allows use with T-Coil equipped hearing aids
  • Selectable speakerphone mode, together with the magnetic visor clip, allow "hand-free" conversations in cars
  • Product Weight is 3.1oz with Battery (2.5oz without battery)
  • Product Dimensions: 2.0" W x 5.2" H

NOTE: The SA-40 is NOT a cell phone, it is an amplified handset that pairs with your existing cell phone.
A Bluetooth-capable cell phone or similar device is required for the SA-40 to operate.

Serene SA-40 Cell Phone Amplifier

Serene Innovations

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