Quantity   Component name
1 × Raspberry PI Zero + >= 4 Gb micro SD card
1 × Adafruit PiTFT 2.4" HAT Mini Kit - 320x240 TFT Touchscreen https://www.adafruit.com/products/2455
1 × Board to build controller (like Adafruit perma-proto board) https://www.adafruit.com/products/571
1 × 10 small buttons https://www.adafruit.com/product/367
1 × 3.5 mm mini jack chassis panel mount + resistor + capacitor https://learn.adafruit.com/adding-basic-audio-ouput-to-raspberry-pi-zero/pi-zero-pwm-audio
1 × PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost @ 1A - 1000C https://www.adafruit.com/products/2465
1 × Lithium Ion Battery - 3.7v 2000mAh https://www.adafruit.com/products/2011
1 × USB Wifi Dongle like the Edimax EW-7811UN Nano 150 Mbps (for setup)