Name: shooting experiment toy SKU: EK-D028 Material: ABS Age range:8 years old or above Package size: 22.5cm*16.5cm*6cm Weight: 250g This product consists of an otoelectronic receiver tube and a laser tube to form an optoelectronic control circuit. When the optoelectronic receiver receives a high intensity laser team, it is sent to the main control U1 for processing, and then output to the speaker to read the voice of the laser gun at the receiving tube position. Through experiments to understand the principle and application of optical control switch.