Device to measure blood oxygen and heart rate with a neck holder and a digital screen

Specifications:

• A device that measures the level of oxygen in the blood and also measures the heartbeat.
• The device is small and easy to carry anywhere.
• It can be used in hospitals or homes with a large, clear display screen.
• Batteries can be easily changed.
• Gives accurate results.
• It features a large, clear screen.
• It measures the level of oxygen in the blood and the number of heartbeats.
• Easy to carry anywhere.