1，before buying remote control，please make sure that your remote control is the same as our picture.if you lose your remote control，please buy it according to device\'s model.if you don\'t find the model in our shop，please let me know ，then we help you make sure the remote control，at last you can buy it

2，before we send the goods，we use testing machine to test everyone remote control.to make sure that it will work normally when you receive it