Usually it cost about 35USD-50USD. If you receive defective item, please kindly notify us within 14 days. The item "600-1100MHz 8W RF Power Amplifier 30dB Radio Frequency Amplifier 800mA ot16" is in sale since Tuesday, June 18, 2019. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Amplifiers".The seller is "outstandingdeal" and is located in ShenZhen. This item can be shipped worldwide.