Jabra Enhance Select 700 vs MDHearing VoltMax
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Jabra Enhance Select 700
The Jabra Enhance Select 700 is a premium-priced OTC hearing aid available at $1,795, earning a B grade with a SoundScore of 3.8/5 in our lab testing. This behind-the-ear device ranks #26 of 65 OTC hearing aids tested, placing it in the top 38% of the category. In our testing, the Enhance Select 700 showed notable strengths in comfort-related metrics. Own-voice comfort scored a solid 3.7/5, measuring 1.19 points above the category average—a meaningful advantage for wearers sensitive to the sound of their own voice. Feedback handling was excellent at 5.0/5, well above the 4.54 category average, indicating reliable stability during typical wear. Speech performance presented a mixed picture. Speech in quiet scored a solid 3.1/5, sitting 0.27 points above average. However, speech in noise was a weakness at 1.0/5, falling 0.48 points below the category average—an important consideration if challenging listening environments are a priority. Music streaming scored 2.5/5, which is above the category average by 0.58 points but only mixed in absolute terms. At this price point, several alternatives delivered stronger overall performance in our testing, including the Lucid Tala (4.61/5) and Audicus Omni 2 (4.59/5). The Jabra Enhance Select 300 and Lucid Engage also achieved higher scores at lower prices. The Enhance Select 700 may suit those prioritizing own-voice comfort and feedback stability over speech-in-noise performance, but shoppers should weigh these trade-offs carefully given the premium pricing.

MDHearing VoltMax
The MDHearing VoltMax is a behind-the-ear OTC hearing aid priced at $699, earning a B grade with a SoundScore of 3.0/5 in our lab testing. This places it in the lower tier of the OTC hearing aid category, ranking 62nd out of 65 devices tested. In our testing, the VoltMax delivered mixed results across key performance areas. Its standout strength is excellent feedback handling, scoring a perfect 5.0/5—above the category average by 0.46 points. This means users can expect stable performance without whistling or squealing during typical daily activities. However, speech clarity proved challenging, with speech-in-quiet scoring 1.9/5 (0.93 points below category average) and speech-in-noise at 1.0/5 (0.48 points below average). Own-voice comfort measured 2.4/5, slightly below the category norm. A significant limitation is music streaming, which scored 0.0/5—nearly 2 points below the category average. Users who prioritize phone streaming for calls or media should consider alternatives. The device features rechargeable batteries, offering convenience over disposable options. At this price point, several competitors deliver substantially stronger overall performance. The VoltMax may appeal to budget-conscious consumers who primarily need basic amplification with reliable feedback control and don't require streaming capabilities. Those seeking better speech clarity or music streaming should explore higher-scoring options in this price range.
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Performance metrics
Scale 1-5 (Tuned)
Lab metric by fit
Scale 1-5 (Tuned)
Speech level
Adjust input dB (Tuned)
Amplification (REIG)
Insertion gain at 65 dB (Tuned)
Audio scenes
Recorded samples (Tuned)
Fitting configuration for tuned fit