1.NOTE: this product is intended for sports and aviation use only. We are the direct manufacturer, there is a clear screen protector which can be removed before use

2.The contec product's housing use ABS matiral,the fingertip clip use silica gel mairal,is soft and easy to apply

3.Measures quickly and accurately pulse rate and spo2 blood oxygen saturation of arterial hemoglobin levels

4.Accessories has Fingertip Pulse Oximeter, Neck/Wrist Cord, User Manual,without the batteries.