Product Number: BZ239B Frame Material: Wood Frame MDF, Dark Brown Wood Grain Pattern, Dark Brown Wood Finish, Front: Glass Size, Weight: 7.2 x 10.2 x 2.8 inches (183 x 258 x 72 mm), 2.4 lbs (1.1 kg), Battery: AA (Alkaline x 1 (Battery Life: Approx. 1 year) Function: Radio correction function (40 kHz/60 kHz/60 kHz automatic selection), Sweep seconds