Circuit Type: NFM/ AM:Double-Conversion Superheterodyne FM /AM Radio: Direct-Conversion Modulation Type: F1D, F2D, F3E, F7W RF Power Output: 5 W (@ 7.4 V or EXT DC) Channels: 1245 Waterproof Rating: IPX5 Case Size(W x H x D): 62 x 110 x 32.5 mm (w/ SBR-14LI, w/o Knob and Antenna) 62 x 110 x 27 mm (w/o SBR-14LI, Knob and Antenna) Weight: 310 g With SBR-14LI and Antenna