Nine inches diameter ; Tuneable tongues ; Good quality'hammered steel' finish in unmarked condition. Internal speaker and Amp connection. I'm not a musician so can only refer you to the article from Music Radar 2010, [link above]. I bought this as a present from a Band who had got it specially for a single recording session in Cardiff.I believe this was the only time it was used and it has not been used since. It comes with its own carry case. The item "ELECTRIC TONGUE DRUM FROM ARGENTINA" is in sale since Thursday, September 16, 2021. This item is in the category "Musical Instruments\Percussion\Folk & World Drums\Handpans". The seller is "palantabrant" and is located in Haverfordwest. This item can be shipped to United Kingdom, Antigua and barbuda, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Belize, Bermuda, Bolivia, Barbados, Brunei darussalam, Cayman islands, Dominica, Egypt, Guernsey, Gibraltar, Guadeloupe, Grenada, French guiana, Iceland, Jersey, Jordan, Cambodia, Saint kitts and nevis, Saint lucia, Liechtenstein, Sri lanka, Macao, Monaco, Maldives, Montserrat, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Turks and caicos islands, Aruba, Saudi arabia, South africa, United arab emirates, Ukraine, Chile, Bahamas, Colombia, Costa rica, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, Trinidad and tobago, Uruguay.