If you receive defective item, please kindly notify us within 14 days. The item "FM Power Amplifier RF Amplifier VHF 136-170MHZ for Rural Campus Broadcasting xr0" is in sale since Monday, September 28, 2020. This item is in the category "Business & Industrial\Test, Measurement & Inspection\Signal Sources & Conditioning\RF & Microwave Amplifiers". The seller is "xspar" and is located in Shenzhen. This item can be shipped worldwide.