Quantity   Component name
1 × Arduino Nano
1 × Battery powered speaker recycled
1 × Reed switch assembly from old bicycle computer recycled
1 × Dreamblaster S1 synth module http://www.serdashop.com/waveblaster
1 × 9 Volt battery and battery connector rechargeable NiMh 9V Battery
1 × Some wires, capacitors and resistors see schematic
1 × 3.5mm stereo connector Connectors and Accessories / Circular Connectors
1 × A plastic box, recycled from another project
1 × Duct tape, to mount everything securely Duct tape is essential to give the project a professional look