Summary Sarracenia is a small desktop bluetooth speaker, powerful and easy to build. It's inspired by the eponymous carnivorous plant. It works with a 5V power supply ( regular micro USB cable) and any bluetooth music device. You will need the following electronic components: http://www.dx.com/p/jtron-3w-40mm-4ohm-speaker-copper-2-pcs-415286 http://www.dx.com/p/jtron-diy-50mm-3w-4-ohms-speaker-bronze-288740 http://www.dx.com/p/2-channel-3w-pam8403-audio-amplifier-board-red-146300 http://www.dx.com/p/16mm-24v-3a-stainless-steel-self-lock-button-switch-w-blue-light-led-silver-349531 http://www.dx.com/p/tp4056-3-7v-lithium-battery-charging-board-micro-usb-charger-module-mini-usb-charger-module-414053 http://www.dx.com/p/universak-usb-bluetooth-v2-1-edr-receiver-w-a2dp-hands-free-black-272072 Print Settings Printer: BQ Witbox Rafts: Yes Supports: Yes Infill: 20%