INSTRUCTION:
Principle: using the headphone cable to touch off the photo button.
Be Attention: Before buying this product, please confirm the volume key of your phone can take pictures or set “volume ley” to “take pictures”
Notice: Apply to IOS 5.0 above system, adriod 4.2.2 above system.
For IOS system, you don't need to set up.
For Andriod system, you may set : “open your phone camera”--setting- “volume key”-set the volume key to “take picture”.
Some Andriod phone can’t be set, you can download free APP like”camera 360” to take pictures.

Selling Point:
1. No need to charge, Do not need to worry about the electricity in the long journey
2. universal IOS or Android Smart Phone
3. Do not need to download software, directly insert the line phone audio port to control the camera phones