Handmade items to support play for children with disabilities. The battery box of a bubble gun has been modified and a BD adapter is set. 【How to Use】 ・Keep the bubble gun's trigger ON. ・You can connect it to your own switch with a 3.5 mono plug and turn it ON and OFF. ・With a momentary switch (ON while pressed, OFF when released), the fan will run and blow air as long as the button is pressed. ・With an alternate switch (ON when pressed, locked, and OFF when pressed again to unlock), the fan will run continuously until pressed again. ・You can use it without a welfare switch by removing the BD adapter. 【Reason for pre-setting the BD adapter】 ＊The BD adapter is inserted into the battery box and connected to a switch, allowing children to operate the switch themselves and move the toy. ＊Commercial products are very fragile and can be easily disconnected if frequently inserted and removed from the battery box or pulled forcefully. ＊Some toys may not be able to accommodate a BD adapter. ＊Therefore, by modifying the battery box to accommodate the BD adapter and pre-setting it, we prevent damage to the BD adapter. Also, depending on the setting method, there may be no electrical conduction. ＊The BD adapter can be used for other toys, depending on the shape of the battery box. ＊Please be careful not to damage it when removing it. ＊If the wire is disconnected, it can be repaired by soldering. 【Specifications】 ・Bubble gun: New. For 3 AA batteries. A hole has been made to pass the cord through to set the BD adapter. ・Batteries: Set of 3. ・BD adapter: Copper plate diameter 10mm, cord length approx. 20cm, 3.5 mono jack. ・Bubble solution 【Price and Shipping】 ・Shipped via either Rakuraku or Yu-Yu. ・We do not offer discounts. ・We also sell switches and buzzers, etc.