FREQUENCY : MW FM WITH BALANCE FADE AND FOUR CHANNEL STEREO. ON THE BACK SIDE: - SPEAKER CONNECTIONS - POWER CONNECTIONS - ELECTRIC AERIAL TRIGGER CONNECTION. Chromelondon TM is a trading name of Capeseer Ltd. The item "NOS BLAUPUNKT HAMBURG MR 21 Vintage Classic Car Radio WARRANTY Porsche Mercedes" is in sale since Wednesday, October 28, 2020.This item is in the category "Vehicle Parts & Accessories\In-Car Technology, GPS & Security\Vintage Radios". The seller is "chromelondon" and is located in London, London. This item can be shipped worldwide.