Bluetooth Bracelet for Measuring Blood Pressure and Infrared Blood Oxygen

Product Information:

Material: environmental protection
Battery capacity: 200mAh
Body memory: 32+256kb
Wearing style: wrist strap
Operation mode: touch + button
Interface: USB 2.0
Wireless distance: 5m (inclusive) -10m (inclusive)
Wristband material: environmentally friendly silicone

A: Chest patch

B: Chest strap version