Item Type: Skin Moisture Analyzer _x000D_ Material: ABS_x000D_ Battery Type: 2pcs AAA batteries (Not included)_x000D_ Instructions:_x000D_ 1. Open the package and take out the product_x000D_ 2. Install 2pcs AAA batteries to the instrument_x000D_ 3. Press the power button to start the machine and test the skin water and oil condition; Press the power button again to turn it off_x000D_ 4. Click the reset key to retest 1Ergonomic design and appearance, especially beautiful lines to ensure better and comfortable hand feelings. 2Portable design that can be easily carried it in your pocket and use it anytime, anywhere. 3Easily to know your skin condition without the need for beauty salons and professional skin hospitals. 4Easy to use and provides a highly sensitive probe for greater accuracy of test results, easy operation. 5Just open it, touch the probe on your skin and you can see the real data on LCD screen (skin moisture and grease elasticity). 1 x Host 1 x Manual 1 x Base