Welcome to our store! WRIST TYPE BLOOD PRESSURE MONITOR: This is a wrist blood pressure monitor with a large LCD screen, powered by batteries. Please install batteries before first use. No batteries are included in the package. Voice Broadcast: The blood pressure monitor will announce the result after measurements. Suitable for seniors and people with poor eyesight. The voice function can be turned off if you don't need it. Adjustable Cuff: Fits most wrist sizes, lightweight and portable for travel and daily use in your bag to monitor your health anywhere, anytime. Note: Stay relaxed, sit still for 5 minutes before measurement; Measure on the same wrist at the same time each day; Leave at least a 5-minute interval before the next measurement. Satisfaction: Our customers are our top priority. If you find any issues with the product after receiving it, such as damage, incorrect quantity of goods, please contact the seller immediately, and we will do our best to provide you with satisfactory customer service.