Sangean U1 The Sangean U1 is a rugged AM, FM utility radio that is made to stand up the the weather. It is water resistant to JIS4 standards and has been ruggedized for the construction or camp site. It has a smooth rotary vernier [5:1] tuning knob and LED tune indicator and backlit analog dial. The 6.5 inch full range speaker and Deep Bass Boost combine for an awesome sound. The U1 has an AC wire compartment with a heavy six foot AC cord. This rugged radio is great for camping, the garage or at the work site. It can also be played from six D cells (not supplied) and can even be operated from external 9 to 14 VDC. There is an 3.5mm AUX input for an external audio source. There is also a 1/4 inch (6.5mm) mic input jack so it is public address capable with optional mic. 10.25x14.5x10 inches 9 Lbs. POWER AC Mains: 230 VAC 50 Hz Battery: Six D (UM-1) cells Battery Life: 30 Hours Alkaline at 50 ma. DC Input: 12 VDC [9 ~ 14 VDC] 1 Amp [Center +] RECEIVER AM Band: 520 - 1710 kHz FM Band: 87.5 - 108 MHz GENERAL Speaker: 6.55 Inch, 8 ohm 15W Mic Input: 1/4 inch (6.5 mm) Voice Dynamic Aux Input: 1/8 inch (3.5 mm) stereo (mixed to mono) 250m Vrms at output 5W @100 Hz47 kOhm Output Power: 7 watts on AC or 4 watts on batteries Antenna System: AM Ferrite bar and FM flexible whip PHYSICAL Size: 10.25x14.5x10 inches 9 Lbs. (260x370x350 mm) Weight: (4.2 kg) without batteries