CHO-ROKU (HA6): A Handheld Hearing Amplifier, Ready to Use with No Setup.
Primo Co., Ltd.

CHO-ROKU: Designed for ease of use
As easy to use as a telephone, with just a single switch. Its simple operation helps relieve the stress of hearing difficulty.
The CHO-ROKU is a handheld hearing amplifier designed for simplicity. Just flip the switch and press it gently to your ear, and you'll be surprised at how much louder and clearer sounds become. Unlike a hearing aid, it requires no hearing tests or difficult setup, and you don't have to wear it. Since there's only one switch, anyone can use it with confidence right from the start. It's useful in many different settings, from conversations with family and friends to medical appointments, trips to the bank or government offices, and meetings.

An easy-to-grip design
CHO-ROKU: A Welcome Choice for Those Who Are Uncomfortable With Hearing Aids
About 60% of CHO-ROKU users have experience with hearing aids, and many – especially those frustrated by traditional devices – appreciate CHO-ROKU’s comfort and simplicity, particularly because they don’t have to wear it in the ear and can easily use it when needed.
The CHO-ROKU fits in the palm of your hand, so you don't have to worry about misplacing it like a tiny hearing aid, and it includes a hole for attaching your favorite strap for easy carrying. The handle is textured for a secure grip. It’s also lightweight at only 112 grams (including batteries), so it’s comfortable to hold and easy to take with you anywhere.

Pressing the ear pad section lightly against your ear activates the switch.
Unique Features Prevent Feedback and Protect Your Ears From Sudden Loud Sounds
The CHO‑ROKU only produces sound when you press it gently to your ear. This unique design effectively prevents feedback. While in use, a soft earpad conforms to the shape of your ear to reduce sound leakage and provide clear, easy-to-hear audio. Additionally, because sudden loud noises can be harsh on the ears, the device includes a safety function that automatically reduces excessively loud sounds to protect your hearing.

A family enjoying a conversation with the CHO-ROKU.
CHO-ROKU: A Trusted Reputation and Proven Track Record
In our surveys, approximately 88% of users report an improvement in their hearing. We have received many delighted comments like, "For the first time in a while, I could enjoy conversations with my family and friends," and "It was a relief to be able to hear the doctor clearly during my appointment." Their families have also shared their happiness: "We don't have to shout anymore," and "The frustration of being asked to repeat things is gone." PRIMO has been making handheld sound amplifiers since 1985. Throughout our history, we have used customer feedback to continually improve our products' sound quality, ease of use, and durability. It is this decades-long commitment to refinement that has earned the trust of so many of our customers.
- URL (Japanese):https://www.primocorp.co.jp/
- URL (English):https://www.primocorp.co.jp/en/