Mini Headphone Design - Embedded Engineering

Request design and develop a pair of mini wireless headphones that can be worn when sleeping. The headphones need to last a minimum of 10 hrs and be rechargeable. The frequency response should be 100 hz to 17,000 hz. Ear buds must also let in ambient noise and be able to let ears “breathe”. The headphones must also be Bluetooth ble capable to stream various masking noises. Great way to stay busy during global lock down. Also need cad files to generate mold. PCB must be able to be mass produced.