I did not get any information from ir Heli Electronics No.50, South Fengxiang Road Jianggao Town, Baiyun District Guangzhou, Guangdong Province People’s Republic of China Telephone: +86 020-36356898 Office: +86 020-36356928 Fax: +86 020-36356228 Contact person: Mickey Jiang Email: info@helielectronics.com