Quantity   Component name
1 × ISD1820 Sound Module 4 USD, 10 second recording time, needs 3 to 5 Volt power supply
1 × 2AA battery holder
1 × tactile switch OR reed switch Triggers the playback
1 × (optional) power switch to turn off the device
1 × (optional) case Protects the device and adds coolnessw
1 × (optional) bolts Needed to attach the module and battery holder to the case