... waterproof rfid chip, recordable waterproof chip, sound chips Sound module with waterproof function, idea choice for your pool toys.Applied for ... PCB, IC, speaker, microphone, LED indicator, batteries, wire harness, switch, more or less for different itemsPower: 3 x AG10 button ... .5kgGross weight: 13.5kg Activated: by pull-tab (slide) switch. light (one light sensor inside it). Infrared sensor. push ...