In March 4th, one of our customers was in the UK. They were a school and needed about 1000 bracelets in the activity, but they didn't need the remote control. So, we suggested that they make a simple switch control and do not use the remote control. The chip is changed to our common chip. The price will be on it. It was cheaper, and did not need the remote control, so the cost was reduced. Finally, the quotation was given to the customer. He saw our offer and felt a lot cheaper than the other quotations. After that, we told him why our price was low. He thought we were professional and understood his needs very well. Really, give them a price for them. Then it was very happy to get us to pay the deposit.