Gme Spk04 Extension Speaker - Black(Gme Spk04)We Think You Should Know3 Watt Output Power Impedance: 4 Ohms Compact Size Dimensions: 66 X 113 X 56Mm (Hxwxd) Overview The Spk04 Is An Extension Speaker To Suit A Wide Range Of Gme Radios To Enhance The Audio Experience In Noisy Environments, Ensuring Important Calls Are Never Missed.With 3 Watts Of Output Power And Compact Size, This Extension Speaker Is The Ideal Solution For Installations Where Space Is Limited.Supplied With Lead, Plug, Mounting Bracket And Mounting Hardware.