https://www.caltta.com/en/productdetail.aspx?pid=102463559&typeid=1 Caltta DH5 series commercial digital radios are featured with innovative baseband/RF design, lightweight body, excellent performance, long battery life, and rich services, suitable for a wide range of industry scenarios like supermarkets, logistics, hotels, catering, private security, property, education, construction, and so on.All Rights Reserved