Bluetooth Heart Rate Wristband D21 ინსტრუქციის სახელმძღვანელო - HPlus Watch
D21 Bluetooth Heart Rate Wristband Instruction Product Specification Chip model: nRF51822 nRF51822( Cortex M0 16MHz) Memory: 256K Acceleration sensor: Three-axis acceleration sensor Heart rate sensor: Green light static heart rate sensor Display: OLED 0.66’’ 64x48 Dots Motor: Cylindrical vibration motor Key-press: Touch key Battery: 80mAh Notice: The wristband…