The House of Marley.LLC GTMINI ユーザーズマニュアル

The device has been evaluated to meet general RF exposure requirement. 

To maintain compliance with FCC’s RF exposure guidelines, this equipment should

be installed and operated with a minimum distance of 20cm between the radiator

and your body.

USB Port: USB connection is used for engineering purposes in the factory or an

authorized service facility and not used by the end-user。