# Learning toys that need batteries to work Which learning toys require batteries to operate? Klutz DIY Rainbow Catcher: Maker Lab STEM Kit: When its batteries are switched on, the catcher produces rainbows around the room\. Yookidoo Tumble Ball Stacker: It requires three good\-quality, known\-brand 1\.5V AA batteries, which are not included\. The maker warns not to use rechargeable batteries\. Yookidoo Lights 'N' Music Friends Ball: It is a soft, battery\-operated musical ball whose motion activates lights and music\. The package contains one ball, one battery box with an on/off button and demo batteries, and one Yookidoo Fun Link\. ### 1. [Klutz DIY Rainbow Catcher: Maker Lab STEM Kit](/products/ucp/anbbaby-com/4990543364182) (sold by anbbaby\.com) When its batteries are switched on, the catcher produces rainbows around the room\. - Battery use: Assembly involves building the gearbox, connecting the battery pack, hanging the crystals and securing the catcher to a window\. (guide) - Battery supply: - - Age: The maker recommends the kit for ages 8 and older\. (guide) - Activity: The kit builds into a motorized machine using gears and electronic components to make rainbows move around the room\. (guide) ### 2. [Yookidoo Tumble Ball Stacker](/products/ucp/anbbaby-com/9032239022366) (sold by anbbaby\.com) It requires three good\-quality, known\-brand 1\.5V AA batteries, which are not included\. - Battery use: It requires three good\-quality, known\-brand 1\.5V AA batteries, which are not included\. (guide) - Battery supply: It requires three good\-quality, known\-brand 1\.5V AA batteries, which are not included\. (guide) - Age: The sources disagree on age: the maker says 9–24 months, while the store feed says 1 year and older\. (guide) - Activity: Balls travel down the tower, make the wings flap, randomly leave through one of two openings and trigger musical feedback\. (guide) ### 3. [Yookidoo Lights 'N' Music Friends Ball](/products/ucp/anbbaby-com/9032163557662) (sold by anbbaby\.com) It is a soft, battery\-operated musical ball whose motion activates lights and music\. - Battery use: It is a soft, battery\-operated musical ball whose motion activates lights and music\. (guide) - Battery supply: The package contains one ball, one battery box with an on/off button and demo batteries, and one Yookidoo Fun Link\. (guide) - Age: The store recommends it for babies aged 3 months and older\. (guide) - Activity: Tossing, shaking, tapping or rolling the ball activates its music and lights\. (guide) ## Also cited in the text - Yookidoo Tumble Ball Stacker, battery warning: The maker warns not to use rechargeable batteries\. (guide) - Klutz DIY Rainbow Catcher: Maker Lab STEM Kit, powered result: When its batteries are switched on, the catcher produces rainbows around the room\. (guide) Every value in the table is a fact RoboTrunk checked, linked to the page it came from\. A dash means no checked fact fills that cell\. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live\. Written 2026-10-18T14:12:36.250Z. This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. Where the rest of this site is: - /agent/story.md is what RoboTrunk is and how it works, in full. - /agent/tools.json is every tool, its arguments and its answers. - /agent/merchants is every store you can buy from through RoboTrunk. - /products/ucp is every store's indexed products. - /products/search is one search across every store, in plain words. - [What RoboTrunk is](/agent/story.md) - [Every tool, in your browser through WebMCP](/agent) - [The tools and how to call them](/agent/tools.json) - [The stores you can buy from](/agent/merchants) - [Every store's products](/products/ucp) - [Search every store at once](/products/search)