iHEAR TReO review

TReO is the only discreet, ear-level device here that is sold purely as a personal sound amplifier, and its maker is unusually direct about what that means. iHEAR says TReO is not a hearing aid and is not intended to compensate for hearing loss, and suggests its OTC aid instead for anyone who suspects mild to moderate loss. What TReO offers is a situational boost: four profiles (Conversation, Outdoors, Theater and Quiet Room) cycled with one button, plus a long press for up to two extra volume levels. The behind-the-ear body is small with a clear tube, it runs on 312 batteries, and setup takes a few minutes with no app or account. OTCHealth says TReO previously sold at CVS and Walgreens for $299 each; it now costs $99 per side or $149 per pair direct, with a 75-day guarantee. If your hearing is fine but lectures and birdsong feel faint, it fits. If you are struggling with everyday speech, one of the OTC aids above is the better buy.

Who it is for

People with normal hearing who want a discreet boost at lectures, theater or outdoors.

Price

$99 per side or $149 per pair.

$99 per side - or get BOTH for just $149
Quoted from the vendor pricing page on November 10, 2026.

Key features

• Four sound profiles: Conversation, Outdoors, Theater and Quiet Room
• Long press for up to 2 extra volume boost levels
• Ultra-compact behind-the-ear design with a clear sound tube
• Uses 312 batteries, 6 included per side
• Designed and made in Roseville, California

Strengths and weaknesses

• Strength: Discreet design at a low price
• Strength: No app, account or appointment needed
• Strength: 75-day money-back guarantee
• Weakness: iHEAR says it is not for people with hearing loss
• Weakness: Disposable batteries
• Weakness: No hearing test or per-ear tuning

Key facts

• Price: $99 per side, $149 per pair
• Profiles: 4
• Battery: 312, 6 per side included
• Guarantee: 75 days

Where it ranks

iHEAR TReO is No. 8 in our Best Personal Sound Amplifiers verdict.