Bluetooth based electronic stethoscope

I am looking for a freelancer who can design and develop a Bluetooth based electronic stethoscope. The primary purpose of the device is to record and analyze heart sounds. The device should have the following features:

- Heart rate monitoring
- Noise cancellation

I am looking for a freelancer with experience in designing and developing electronic devices, particularly in the medical field. The ideal candidate should have the following skills:

- Experience in Bluetooth technology
- Knowledge in signal processing
- Familiarity with noise cancellation techniques

I would also prefer a freelancer with a background in medical engineering. The project requires attention to detail and accuracy as it involves recording and analyzing heart sounds. The successful candidate should be able to meet deadlines and have excellent communication skills.