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Siemens Cielo 2 Active Hearing Aids


Siemens has replaced this with newer models in the Siemens Pure Series.

Ready to purchase or have questions? Call 1-800-301-3137

Cielo 2 Active is loaded with all of the technology you need, so you can do whatever you want.Cielo 2 Active doesn't just amplify sounds. It seamlessly improves your overall listening experience. Hear better in crowds, in wind, in restaurants, in life. Cielo 2 Active helps you hear what you want to hear. It's the perfect aid for the active person at a price that will fit into almost any budget. Water resistant, nanocoating to repel water & sweat and the dome tip has Siemens C-Guard technology to protect against ear wax and humidity for months.

Siemens Cielo 2 Active at a Glance

  • Mild to Severe hearing loss
  • Better hearing in noise and wind
  • Automatic adjustments while maintaining manual control
  • Supports an active lifestyle and brings better performance in sweat, rain, and wind
For more technical and lifestyle information about hearing aids click here to view our General Information page.


The two most common technologies used in hearing aids are analog and digital. Digital is newer and considered to be much more flexible, capable of doing more operations, and the only technology used in modern hearing aids.
Open Fit Type Call for Info.
Human speech ranges in frequencies roughly from 250 to 6000 Hz. Hearing aids are built so that this group of frequencies (250 to 6000 Hz) is divided into smaller groups, called bands or channels.
Multiple memory settings can be programmed into the aid to give the user the ability to cope with changing sound and noise environments with the push of a button.
Technology Level Call for Info.
Volume Control
Volume control is generally considered to be a manual adjustment that the user can control. All hearing aids have automatic gain control designed to make soft sounds audible and loud sounds tolerable. This is done automatically within limits programmed into the device.
Available with Remote
On-Board Control Type
Controls on hearing aids usually have one or more of:
1. A momentary button used to change from one memory to the next
2. A button used to increase the level of volume
3. A rocker switch where pushing on one end does one function while the other end does another function
4. A wheel that will control volume
Call for Info.
Remote Control Available
Remote controls for hearing aids are small enough to comfortably fit in a pocket. A remote control will enable more functions than can be put on a hearing aid itself.
Directional Microphones
Microphones are the electronic component that picks up sound. Microphones are very small and can be made to pick up more sound in one direction than all others. This is called a directional microphone.
Noise Reduction
Technology to separate voices from other sounds is continuously being improved. Each manufacturer has a patented process and trademarked name for noise reduction.
Sudden Noise Protection
This feature helps make hearing aids acoustically comfortable by dampening sudden loud noises, such as a dropped dish.
Wind Noise Protection
Wind noise is an important feature for those that spend time in the outdoors by reducing the roar of wind across the microphone. This feature is improving but is not effective in gusty wind conditions.
Feedback Management
Acoustic Feedback, is also known as squealing, buzzing, 'your aids are talking to you', etc.
Telecoils help with telephones that are rated hearing aid compatible.
Aid-to-Aid Communication
Communication from one hearing aid to the other is a very low strength signal designed to keep both hearing aids operating in the same mode at the same volume.
Bluetooth Capable
Being able to couple your hearing aids with a BlueTooth-enabled device, such as a cell phone, allows phone conversations to be heard through your hearing aids.
Direct Audio Input (DAI)
DAI is only on Large and Full Size hearing aids due to the need for terminals on the outside of the case. Using DAI allows other devices to connect directly to the hearing aids and input their audio signal.
Battery Size/Color
Conventional Hearing Aid Batteries cost less than a dollar per battery and are very easy to change.
13 (Orange)
Warranty 3 years
Loss/Damage Warranty 3 years


    Innovative Sound Features

  • Environmental classification system
  • Automatic and adaptive directional microphone system
    Noise Reduction Features

  • Speech and noise management
  • Wind noise reduction
    User Friendly Features

  • Data logging
  • AutoPhone™
    AquaProtect Water Resistant Features

  • Water resistant dome with integrated C-Guard technology
  • Water resistant clip-on cover for microphones
  • Nanocoated housing
    Rechargeable Features

  • Full day and evening operation on one charge
  • Easy-to-understand charger status indicators
  • Warning system to notify wearer when non-rechargeable batteries are in device

  • Rechargeable Size 13 (5 hours charge time)
  • Zinc Air Size 13 Orange (20-21 day battery life)

  • ePocket™
  • Choice of 6 Colors

  • Parts and labor manufacturer warranty
  • 45-day money back guarantee

Precise Review

Our Rating

  • Physical Fit 4
  • Size 4
  • Tubes 4
  • Domes 5
  • Features 5
  • Ergonomics 5
  • Sound 4
  • Noise Reduction 3
  • Feedback Reduction 4

Special Features

Water resistant. Accepts ePocket remote control which give the Cielo Active 3 memories and volume control.

Comments, Pros & Cons

Pro’s with the Siemens Cielo Active are easy to come up with. Siemens has packaged their budget priced Cielo technology in the same water resistant case they introduced for the Centra Active. This give hearing aid wearers the benefit of leading an active lifestyle, hearing well, and not breaking the bank to get there.

Con’s on this hearing instrument from Siemens are harder to find. So far, the only cons are that the Cielo Active is possibly not as good in noise as the Centra Active. Also, as with all receiver-in-the-canal aids you will need to be diligent in keeping the parts that go in the ear canal clean and free of ear wax.

Data Sheets/Manuals
Not all information in these documents are relevant to US consumers.

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Contact Precise Hearing

Precise Hearing's trained specialists are happy to assist you in choosing the right hearing aid solution for your unique loss. They can also:

  • Help determine how to read your hearing test
  • Help you find the tubes, domes, and other accessories that fit your current hearing aids
  • Offer support for hearing aids and/or accessories that you have already purchased through Precise Hearing

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