It's Channel 38 606-648Mhz. I also have a G4 belt-pack transmitter and an ME2 Lavalier / Lapel microphone for sale - they work with this system, please check my other items for sale. Will post via UPS next day.
Any questions please message me, happy eBaying. The item "Sennheiser ew300 G4 Handheld Transmitter +G3 Receiver +Hard Case + Rack Kit Ch38" is in sale since Friday, September 25, 2020. This item is in the category "Musical Instruments\Pro Audio Equipment\Microphones". The seller is "barefootbutcher" and is located in Gillingham.This item can be shipped to United Kingdom, 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, Bermuda, Bolivia, Barbados, Brunei darussalam, Egypt, Guernsey, Gibraltar, Guadeloupe, French guiana, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri lanka, Macao, Monaco, Maldives, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Saudi arabia, South africa, United arab emirates, Ukraine, Chile, Bahamas, Colombia, Costa rica, Guatemala, Honduras, Jamaica, Kuwait, Panama, Qatar, Trinidad and tobago, Uruguay, Cayman islands.