<b>Compatible models:</b><br> Most capacitive touch panels, such as smartphones and tablets,  iPhone, iPad, and Andriod.<br> <b>Unsupported models: </b><br> Windows devices, such as Fire HD, ArrowTab, tablet computers and other smartphones.<br><br>  <b>Product specifications:</b><br> Pen length: about 13.5 cm<br> Pen weight: about 12.5 grams<br> Available time: about 12 hours（fully charged） <br> Charging time: <2 hours<br> Charger requirement: 5V 2A<br> How to charge: Rotate the cover to the right and remove it, connect the USB charging cable (included) to the micro USB port, then connect it to the adapter or other USB port.<br><br>    <b>Package Contents:</b><br> 1, capacitive pen * 1<br> 2,1 micro USB cable* 1<br> 3, USB port protection cover * 1<br> 4, instruction manual * 1<br>   <b>Indicator Description：</b><br> Indicator Description: Press the power button to turn the power on/off.<br> Power on: The power is turned on when the light turns blue.<br> Charging: The indicator light is red. (Requires shutdown when charging)<br> Charging complete: The indicator light is green.<br> Power Off: When the power is off, the light will flash blue and then turn off automatically.<br> Automatic power-off function: Do not use for 5 minutes. If not selected (still state), the power will automatically turn off. Turn the power on again when using.<br><br>  <b>Precautions:</b><br> 1. Do not subject this product to strong vibration or shock or excessive force.<br> 2, do not store in high temperature and high humidity.<br> 3. If not used for a long time, please fully charge and store in a box.<br> 4. Do not disassemble, repair or modify this product.<br> 5. The protective film may affect the responsiveness of this product.<br><br>