Choice Band is an item in the “Choice” category (Items). It costs ₽4000.
In-game descriptions
| Ruby / Sapphire · Emerald | Raises a move’s power, but permits only that move. |
|---|---|
| FireRed / LeafGreen | An item to be held by a POKéMON. It powers up one move, which becomes the only usable one. |
| Diamond / Pearl · Platinum · HeartGold / SoulSilver | An item to be held by a Pokémon. This headband ups Attack, but allows the use of only one kind of move. |
| Black / White · Black 2 / White 2 | An item to be held by a Pokémon. This headband ups Attack, but allows the use of only one of its moves. |
| X / Y · Sun / Moon · Ultra Sun / Ultra Moon · Let’s Go, Pikachu! / Let’s Go, Eevee! · Sword / Shield | An item to be held by a Pokémon. This curious headband boosts Attack but only allows the use of one move. |
Where to find it
Not placed on the atlas maps (so far: Red/Blue and Generation 3).
Sources : PokeAPI (items, item_flavor_text, machines) · atlas · pokeemerald species_info.h