Widex Moment BTE 312 (MFi & ASHA): A Complete Product Description

What Is the Widex Moment BTE 312?

The Widex Moment BTE 312 is a behind‑the‑ear (BTE) hearing aid from the Widex Moment™ family. It uses a disposable size 312 zinc‑air battery – the same battery size found in many RIC models but housed in a larger BTE body for improved durability and easier handling. The “D” designation indicates direct streaming compatibility with iPhones (MFi) and ASHA‑enabled Android devices, bringing modern wireless connectivity to a traditional BTE form factor.

The BTE design places the main body behind your ear, connected to a thin tube and either a standard dome or a custom earmold. This style offers several advantages: larger, more accessible controls, greater resistance to moisture and earwax, and the ability to deliver robust amplification. The Widex Moment BTE 312 is designed for individuals with mild to moderate hearing loss, with a fitting range of 40‑95 dB HL for the 440 and 330 levels, and 20‑95 dB HL for the 220 and 110 levels.

Battery Type and Daily Use

The size 312 battery is one of the most common hearing aid batteries. It is smaller than a size 13 but larger than a size 10, offering a good balance between device size and battery life. A typical size 312 battery provides 3‑7 days of use depending on streaming activity, amplification demands, and daily wearing time. For users who stream audio frequently (music, phone calls, podcasts), battery life will be on the shorter end. For those who use the hearing aids primarily for amplification in quiet environments, a single battery can last up to a week.

The hearing aid features a battery door that doubles as an on/off switch – open the door to power down the device, close it to turn it on. Audible low‑battery warnings (beeps or voice alerts) let you know when it is time for a replacement. No charging equipment is needed, making this model ideal for travel, camping, or any situation where access to electricity is limited.

The Sound Philosophy: PureSound™ and Natural Hearing

Widex has built its reputation on a “less is more” approach to sound processing. The Moment BTE 312 respects how your auditory system naturally works. Rather than aggressively manipulating every sound, it preserves the subtle details of your environment and applies extreme sound processing only when necessary. This results in sound that feels authentic rather than artificial.

At the heart of this experience is PureSound™ technology, which uses ultrafast sound processing to eliminate delay‑based distortion. In open or vented fittings, natural sound enters your ear alongside amplified sound. Without PureSound, the slight delay between the two creates a hollow, echo‑like quality. PureSound removes that delay, delivering clean, personal, and natural sound.

The BTE 312 also features Variable Speed Compression, which dynamically adjusts from fast to slow for consistent speech understanding and listening comfort at all input levels. TrueInput Technology provides an expanded input range of 113 dB SPL, handling very loud sounds without distortion while preserving soft sounds.

Technology Levels: 440, 330, 220, and 110

The Widex Moment BTE 312 is available in four technology levels. Based on the pattern from the PDF and Widex’s standard architecture, the following features are typical for each level.

Widex Moment BTE 312 440 (MBR2 440)

This is the flagship level of the BTE 312 line, designed for users who face complex listening environments daily – restaurants, family gatherings, outdoor activities, public transport. Key features include:

• Processing channels: 15 channels for precise sound shaping.

• HD Locator bands: 15 bands for channel‑specific directionality, dramatically improving speech intelligibility in noise.

• Speech Enhancer: The most advanced version providing real‑time noise reduction and speech enhancement.

• Sound Classifier Categories: 11 categories, automatically adapting to different listening environments for clarity, comfort, and audibility.

• Listening program options: Up to 5 programs.

• SmartWind Manager: Advanced level – improves comfort and preserves speech understanding in windy conditions while maintaining binaural hearing.

• TruSound Softener: Advanced level – smooths out sudden impact sounds (door slams, clanking dishes) for greater comfort.

• Digital Pinna: Included – helps you locate and focus naturally on voices in front or behind by mimicking the normal effect of your outer ear.

• Directional Focus: Advanced manual adjustment of microphone directionality.

• Soft‑level noise reduction: Advanced.

• Hands‑free communication: Supported on compatible iPhones – the hearing aid’s own microphone picks up your voice for phone calls.

• EDRC (Enhanced Dynamic Range Compression): Included for audibility of soft sounds and comfort in loud environments.

• Fitting range: 40‑95 dB HL.

Widex Moment BTE 312 330 (MBR2 330)

The 330 level offers excellent performance for most daily situations, with a balance of advanced features and value.

• Processing channels: 12 channels.

• HD Locator bands: 12 bands.

• Speech Enhancer: Advanced version.

• Sound Classifier Categories: 8 categories.

• Listening program options: Up to 4 programs.

• SmartWind Manager: Advanced level.

• TruSound Softener: Advanced level.

• Digital Pinna: Included.

• Directional Focus: Advanced manual adjustment.

• Soft‑level noise reduction: Advanced.

• Hands‑free communication: Supported on compatible iPhones.

• Fitting range: 40‑95 dB HL.

Widex Moment BTE 312 220 (MBR2 220)

The 220 level is a solid choice for users with quieter lifestyles or those who want core Moment features at a more accessible price point.

• Processing channels: 10 channels.

• HD Locator bands: 10 bands.

• Speech Enhancer: Standard version.

• Sound Classifier Categories: 6 categories.

• Listening program options: Up to 3 programs.

• SmartWind Manager: Basic level.

• TruSound Softener: Basic level.

• Digital Pinna: Not included.

• Directional Focus: Basic manual adjustment.

• Soft‑level noise reduction: Advanced (still effective).

• Hands‑free communication: Not supported (direct streaming still works, but hearing aid microphones are not used for phone calls).

• Fitting range: 20‑95 dB HL.

Widex Moment BTE 312 110 (MBR2 110)

The essential level, providing core Widex sound quality and connectivity with streamlined features.

• Processing channels: 10 channels.

• HD Locator bands: 10 bands.

• Speech Enhancer: Standard version.

• Sound Classifier Categories: 6 categories.

• Listening program options: Up to 3 programs.

• SmartWind Manager: Basic level.

• TruSound Softener: Basic level.

• Digital Pinna: Not included.

• Directional Focus: Basic manual adjustment.

• Soft‑level noise reduction: Advanced.

• Hands‑free communication: Not supported.

• Fitting range: 20‑95 dB HL.

Features Common to All Levels

Across all four levels of the Widex Moment BTE 312, the following core technologies are present:

• Dynamic Feedback Controller: Fast and efficient detection and cancellation of feedback (whistling), engineered to adapt and preserve sound quality without artifacts.

• TrueInput Technology: 113 dB SPL input range for handling loud sounds without distortion while preserving soft sounds.

• Variable Speed Compression: Dynamically adjusts from fast to slow for consistent speech understanding and listening comfort at all input levels.

• Direct Audio Streaming: Direct streaming of audio from iPhones (MFi) and ASHA‑compatible Android devices. Stream phone calls, music, podcasts, and videos directly to your hearing aids.

• Call Control: Answer and end phone calls from a compatible iPhone using the hearing aid push button or a double‑tap to the device or ear.

• Widex Moment App: Allows users to control their hearing aids, access MySound AI for powerful sound personalization, enjoy direct streaming, and get tips via My Guide.

• Find My Hearing Aids: GPS‑based location tracking for lost devices (via the app).

• Personalized Programs: Save your hearing aid adjustments using AI tools or the sound equalizer as easily accessible personal programs.

• Telecoil: Connect easily to telecoil‑enabled systems (e.g., theaters, places of worship).

• TV Play 2 Compatibility: Direct stereo streaming of TV audio to your hearing aids.

• RC‑DEX Compatibility: A simple remote control for volume and program adjustment.

• Push Button: Programmable button to control hearing aid functions with a short or long press.

App Ecosystem and AI Personalization

The Widex Moment App (available on Apple App Store and Google Play) serves as your command center. Key features include:

• MySound AI: Machine learning algorithms that guide you to a better, more personalized hearing experience by asking simple questions about your preferences in specific listening situations.

• Sound Equalizer: Fine‑tune bass, mid, and treble to your liking.

• Directional Focus Adjustment: Manually steer the microphones (advanced on 440/330, basic on 220/110).

• Program Selection: Switch between saved programs.

• Streaming Control: Manage audio streaming from your phone.

Listening in Noise and User Comfort

The HD Locator bands are a standout feature for noisy environments. Unlike traditional directional microphones that apply the same directionality across all frequencies, HD Locator applies channel‑specific directionality. This means the hearing aid can focus on speech frequencies in one direction while reducing noise in other frequencies from other directions. The result is clearer speech in restaurants, parties, and group conversations.

SmartWind Manager (advanced on 440/330) reduces wind noise without compromising speech understanding – ideal for outdoor activities like walking, cycling, or golf. TruSound Softener (advanced on 440/330) smooths out sudden loud sounds, making unexpected noises less jarring. Soft‑level noise reduction works continuously to reduce background hiss and hum, making quiet environments more comfortable.

Physical Design and Customization

The Moment BTE 312 is supplied in a standard beige colour. Other colour housing options are available with a delivery lead time of three weeks (as per the terms on page 2). The device connects to a thin tube and either a standard dome or a custom earmold. Earmolds can be hard or soft, and are available in various venting options. The push button is large and easy to locate, programmable for short or long presses – for example, short press to change program, long press to adjust volume or answer a call.

The size 312 battery compartment is designed for easy opening, even for users with reduced dexterity.

What You Should Know Before Buying

The Widex Moment BTE 312 requires professional fitting by an audiologist. While the technology is sophisticated, its effectiveness depends entirely on proper programming to your unique hearing loss. In India, hearing aids are exempt from GST; however, accessories (TV streamers, remote controls) do attract GST. Warranty varies by technology level – please confirm with your provider. You will need to purchase size 312 batteries separately.

This model is best suited for users with mild to moderate hearing loss (up to 95 dB HL) who prefer the durability and easy handling of a BTE design, want modern streaming features, and prefer disposable batteries over daily charging. For users who want rechargeable convenience, consider the Moment BTE R D instead. For those with losses exceeding 95 dB HL, a more powerful BTE (like the BTE 13 or a super‑power model) may be required.