AIKO Poly
Headphones that charge from daylight.
Seventy-two hours between wall charges, and ambient light quietly covers much of the rest — so the cable stays in the drawer.
What AIKO Poly is
Seventy-two hours, then daylight does the rest.
AIKO Poly is a pair of over-ear headphones with photovoltaic cells worked into the headband. They run about seventy-two hours of listening between wall charges — and in ordinary daylight, on a desk or in a bag by a window, they top themselves up while nobody is wearing them.
The point is not the specification. It is that charging stops being something you remember to do. Tuning is applied on the device rather than in a cloud service, and the materials were chosen for a product meant to outlast a charging habit rather than a product cycle.
Step by step
How the charge keeps itself up.
- Charge once from the wallA full charge gives roughly seventy-two hours of listening — three or four days for most people before the cable is even relevant.
- Leave them in the lightThe cells top up under ordinary ambient daylight. A desk near a window, a walk outdoors, a bag on a commute; direct sun is faster but is not required.
- There is nothing to enableNo dock, no cable, no setting. The top-up happens whenever there is light on the headband, including while you are wearing them.
- The wall charge becomes rareBetween the baseline and the top-up, the practical cycle for most listeners is weeks rather than days.
| Battery between wall charges | ≈ 72 hours of listening |
|---|---|
| Solar top-up | Automatic under ambient daylight — no dock, no cable, no setting |
| Form | Over-ear, closed back |
| Tuning | AI-assisted, applied on-device rather than in a cloud service |
| Materials | Eco-conscious construction, chosen for longevity and repair |
| Charging port | Wall charge for the baseline; daylight for the rest |
| Where to buy | aikopoly.store |
Seventy-two hours of listening from a wall charge is the floor, before any daylight is counted toward it.
Photovoltaic cells across the top of the band gather ambient light on a desk, on a walk or through a window.
AI-assisted tuning runs on the headphones themselves — no account, no cloud round trip, no listening history leaving the product.
AIKO Poly
Made to outlast a charging habit.
A product that charges itself only matters if it lasts long enough for that to add up. The materials and the construction were chosen with repair in mind rather than a replacement cycle.
A few useful answers
About AIKO Poly.
Do they need direct sunlight?
No. The cells top up under ordinary ambient daylight — a desk by a window, a walk outdoors, a commute. Direct sun charges faster; it is not a requirement.
What happens on a week with no daylight?
You are back to the baseline, which is about seventy-two hours of listening from a wall charge. The solar top-up extends that rather than replacing it.
Does the tuning send my listening anywhere?
No. Tuning is applied on the device. There is no cloud service in the audio path.
Can they be repaired?
They were designed to be. The materials and construction were chosen for longevity and repair rather than for a yearly replacement.
The rest of AIKO
Three more products, one operating principle.
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