Handmade items to support play for children with disabilities. These items allow battery-operated toys to be controlled with a disability switch. Set of 2: one for single D/C batteries and one for single AA/AAA batteries. 【How to Use】 * Insert the insulated part (round metal part) between the battery and the toy's battery terminal, and connect the jack to the 3.5mm mono plug of the disability switch. * Turn ON the original switch on the toy. * When the disability switch is turned ON, the toy will operate. * The timing of the toy's operation varies depending on the type of switch. * For example, there are momentary switches (ON while pressed, OFF when released) and alternate switches (ON when pressed, locked, and OFF when pressed again to unlock). * These adapters cannot be used with toys that are activated by stimuli such as sound, vibration, tilt, or light, or with toys that use parallel circuits (most are series circuits) for the batteries. 【Specifications】 * 3.5mm mini jack * Length: Approximately 20cm * Insulated part: Φ13mm for single D/C batteries, Φ10mm for single AA/AAA batteries 【Important Notes】 * Even commercially available products are very fragile and can be easily disconnected if frequently inserted and removed from the battery box or pulled on forcefully. * Depending on the toy, the BD adapter may not be able to be inserted, or processing may be required for the cord to pass through. * When inserting on the negative side of the battery, some batteries have a concave center compared to the edge. In this case, there will be a space between the adapter and the battery, and it will not conduct electricity. * When inserting on the positive side of the battery, depending on the shape of the battery box, there may be a space between the battery and the adapter, and it will not conduct electricity. * If the BD adapter is disconnected, it can be repaired by soldering. * The edges of the copper plate are made as smooth as possible, but since it is thin metal, please be careful not to injure the skin. Please be especially careful that children do not touch it. 【Price and Shipping】 * Shipped via Rakuraku or Yuuyu. * Price reductions are not available.