USB series Laser usage notice

This USB series nasal device is developed by COZING MEDICAL and is protected by a national patent.

It can be powered via a laptop USB port, a cell phone adapter, or by using our certified mini adapter with a cell phone.
Power specifications of 5V, 1A, and 2A are all supported.

If you use a portable power bank, make sure it does not have an internal protection circuit.
When you plug the USB series laser or LED device into the power bank, if it operates continuously for 3 to 5 minutes, the power bank is suitable.
If the device stops working after 15–60 seconds and turns off automatically, it means the power bank has a protection circuit.
In this case, please use another power source for the USB series lasers.