FAQ:Why No Reading Displayed on Pulse Oximeter?1. Do not use fingers with nail polish or artificial nails for measurement.2. Ensure your finger is warm and dry during testing.3. Try measuring with a different finger.4. Check that your finger is fully inserted to the bottom of the pulse oximeter.---------------------------------------------------NEW item-What's different?increased battery capacity-220mAhUpgraded charging method-Wireless ChargingUpgraded Chip- more accurate and fasterAdditional wireless charging cable- can be used on your smart watchRechargeable DesignThe AIQUE Rechargeable Medical Oximeter features a rechargeable design, ensuring long-lasting use and convenience for both home and hospital settings.Fingertip Pulse OximeterThis device serves as a fingertip pulse oximeter, providing accurate and real-time measurements of blood oxygen saturation, making it an essential tool for monitoring health conditions.Digital LED DisplayEquipped with a digital LED display, this oximeter provides clear and easy-to-read measurements, enhancing its user-friendliness and reliability.Adult & Child-FriendlyDesigned with children in mind, this oximeter is user-friendly and comfortable, making it ideal for pediatric use.Strap Lanyard IncludedThe product comes with a strap lanyard, allowing for hands-free use and ensuring the oximeter is always within reach when needed.Rechargeable Oximeter Strap Lanyard Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor Digital LED Display Child