Check the listing for details. Wellue Wrist Pulse Oximeter for Oxygen Level & Pulse Rate Bluetooth Refurbished. Condition: Seller refurbished. Listed at 99.99 USD. About this itemProduct details 【1】ADVANCED & RELIABLE-- Continuously track your O2 level, heart rate and body motion in every 4 seconds.【2】FREE APP and PC REPORT in CSV/PDF-- Data can be transferred to smart phone and PC software for more detailed information. Easily to manage all historical data and supports sharing JPG or CSV reports with others.【3】SMART VIBRATION REMINDER-- The smart vibration system tracks your SpO2. It allows to set the threshold and the intensity of the vibration reminder on the device or Vihealth APP according to your own needs. If an irregular 02 level is detected, it will vibrate【4】SOFT RRING SENSOR-- Equipped with a patented ring-type blood oxygen probe, it is light and compact. It won't make your fingers bulky ( compare with duckbill probes), and it's comfortable to wear all night long.【5】RECHARGEABLE and PORTABLE-- Super battery duration, work up to 16 hours on one charge. Light and small. Suitable for home use and travel.【6】Visualoxy oxygen monitor is compatible with D-type charging cable.【7】Note: It's not a medical device. This device is for Sports and Aviation use only and not intended for medical use. It is recommended to use the pulse oximeter before or after your exercise when you remain stationary.【Package include】-- 1X Visual Oxy oximeter；1X Micro USB cable；1X User guide