Quick to set up and easy to adjust volume for a comfortable listening experience

Main fabric composition: content: 100%

The brightness is fully dimmable from 1% to 100%

Size: closed crotch 40

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Color LCD, Handheld Rechargeable Bluetooth Spirometer, Lung Monitor PC Software Bathroom Essentials Quick to set up andIntroduction The SPIROMETER is a hand held equipment for checking lung conditions, adopts the infrared signal acquisition mode for measuring items related to FVC, and is applicable for hospitals, clinics, and family routine tests. Functions Forced Vital Capacity (FVC), forced expiratory volume in one second (FEV1) to forced vital capacity (FVC) ratio (FEV1 FVC), peak expiratory flow (PEF), forced expiratory flow at 25 % of FVC (FEF25), forced