... IC, loudspeaker/buzzer, microphone, LED lights, batteries, wire harness, switch, more or less for different items.ICOTP or Mask Rom ... , 750mAh); AAA(1.5V, 300mAh)Switch OptionsPull-tab, press, on/off, vibration, sound sensor, light sensor, motion sensor etcLight Color OptionsRed, yellow, blue, ... (Western Union or Paypal are welcomed).2) Production lead time: 5,000units in 20 days. 50,000units in 45 ...