This product does not contain batteries! ! ! Product size 603835mm. Display mode: TFT display. This product is a Bluetooth model. TFT panel, high brightness and wide viewing angle, the screen display is clearer. CPU motherboard, SOC chip, upgrade algorithm measurement is more accurate. Silicone shading design, anti-light interference, more sensitive and accurate measurement, optimized silicone shading layer structure, more delicate shading design, better signal transmission quality, more sensitive and accurate measurement. The opening and closing angle of the product is flexible, and the fingers of different sizes are comfortable to wear. Dustproof and waterproof, it can prevent daily minor splashes and is safer to use. Built-in silicone membrane, ergonomically designed to fit your fingers, soft and comfortable. No need for fingers to automatically shut down in 8 seconds, saving power. Four-way display, can be read vertically or horizontally. It is recommended to use this product
