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Hearing Services in Diamond Bar, CA
Explore Our Services
Everything you need for better hearing, in one practice. Every visit is one-on-one with Robert Cousins, a licensed Hearing Instrument Specialist (License #HA8055) with more than 10 years of experience.
Hearing Aids
Seven major brands, fitted to your hearing and checked with Real Ear Measurement. 45-Day Risk-Free Trial.
Free Hearing Tests
A full hearing test, with results explained in plain language.
Tinnitus Relief
Hearing aids with tinnitus features, help setting up sound-therapy apps, and a tinnitus questionnaire.
Hearing Aid Repair
Diagnostic checks, cleanings, parts and reprogramming, for all major brands, even ones bought elsewhere.
Custom Hearing Protection
Earplugs molded to your ears for loud work, power tools, motorcycles and concerts.
Custom Earplugs for Musicians
Filtered earplugs that lower the volume evenly, plus in-ear monitor molds.
Speech Testing
Measures how clearly you understand words, in quiet and in background noise.
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Why Choose Hear4U?
- One-on-one care: you see Robert at every visit, from your first test to every follow-up.
- Free hearing test to find out where you stand.
- Seven major brands, so recommendations fit you, not one company's catalog. See the brands we fit.
- Real Ear Measurement to check every fitting.
- 45-Day Risk-Free Trial and flexible financing.
- Insurance help with plans through Amplifon, TruHearing and NationsHearing. See insurance and hearing benefits.
- Office or home: visits by appointment in Diamond Bar, or home visits within about 20 miles at no extra charge.
- Ongoing support: follow-ups, cleanings and repairs for as long as you wear your hearing aids.
Reach Out Today
Advancements in Hearing Aid Technology
Today's hearing aids do far more than make sounds louder. Compare the latest models on our hearing aid brands page.
Take the First Step Toward Better Hearing
Not sure where to start? Begin with a free hearing test. You'll get clear answers, and a plan if you need one. Book online or call (626) 373-0308.
Contact Us Today
Start Your Journey to Better Hearing
Have a question about your hearing or your hearing aids? Send us a message and Robert will get back to you personally.
Prefer to talk? Call (626) 373-0308 or book online.
Schedule Appointment