Quantity   Component name
1 × Raspberry Pi Zero either a zero-W or not but a W makes things easier
1 × PiCB-TFT Adapter board for a 2.8" ili9341 SPI screen by [moosepr]
1 × 2.8" 18 pin ili9341 SPI screen
1 × mini (Pi)QWERTY USB keyboard mini keyboard by [bobricius]
1 × TP4056 battery charger module micro usb LiPo battery charger module
1 × 2000 mAh LiPo battery Turnigy 2.0
1 × MAX98357A I2S DAC amp Adafruit part 3006
1 × 14x20mm oval speaker
1 × Redbear IoT pHAT WiFi and bluetooth add on board if not using a Pi 0 W
1 × mini LED flux capacitor PCB off OSHPark by [SwedishVaper]
1 × 9v step up converter pololu 9v regulator or MT3608 module