Hearing enhancement
SonaVue HJA “Jona”
The premium frame in a softer, rounded shape, hand-finished in gloss acetate. Same platform as K-Man, different face.
- Tier
- Premium
- Frame
- Premium gloss acetate, rounded
- Variants
- 11
Available versions
11 in retail artworkPhotochromatic
2Clear to grey, reacts to daylight. Category 0–3.

HJA01-BLK
Black

HJA01-TOR
Tortoiseshell
Sunglasses
2Polarised sun lens. Category 3.

HJA02-BLK
Black

HJA02-TOR
Tortoiseshell
Progressive reader
7OTC reading magnification with clear distance vision.

HJA03-BLK 1.0d
Black · +1.0

HJA03-TOR 1.0d
Tortoiseshell · +1.0

HJA03-BLK 1.5d
Black · +1.5

HJA03-TOR 1.5d
Tortoiseshell · +1.5

HJA03-BLK 2.0d
Black · +2.0

HJA03-TOR 2.0d
Tortoiseshell · +2.0

HJA03-BLK 2.5d
Black · +2.5
Specifications
from the product registry| Ingress protection | IP54 |
|---|---|
| Battery — streaming | ~10h |
| Battery — calls | ~8h |
| Full recharge | 1.5h |
| Quick charge | 10 min = 2h use |
| Bluetooth | 5.4 |
| Microphones | 2 × beamforming with ENC |
| Lens | photochromatic (clear → grey) |
| Lens category | Cat 0–3 (Cat 3 on the 02 sunglass lens) |
| UV protection | UV400 protection |
| Reader dioptres | +1.0 · +1.5 · +2.0 |
| Frequency band | 2402–2480 MHz |
| Certifications | CE RED 2014/53/EU · RoHS |