Fuguang Smart Fingerprint Cup Unlock Password Children's Insulated 316L Straw Water Bottle Student Gift 550ml

Intelligent fingerprint lock cup that cannot be opened by others.

Lid remains locked without fingerprint authentication; bottom cover cannot be opened without fingerprint unlock.

Twist lid requires fingerprint unlock.

Contains electronic components in the lid; do not use hot water for scalding or steam sterilization.

316L stainless steel inner liner, resistant to acid, alkali, and corrosion; safe for milk, juice, and daily beverages.

Designed to prevent prank contamination (e.g., insertion of chalk, insects, or cleaning bleach) to protect users from poisoning or infection.