Valcom VP-412A. Input voltage: 120 V, Input frequency: 60 Hz, Output power: 10 W. Colour of product: Black. Weight: 1.41 kg, Width: 50.8 mm, Depth: 41 mm. Operating temperature range (T-T): 0 - 50 °C, Operating relative humidity range: 0 - 85 %. Certification: UL, cUL