Powered by 2 AAA batteries (not included), the Tecsun PL-118 is a mini portable digital FM receiver with a PLL synthesized tuner and DSP circuity, which greatly improve sensitivity, signal clarity and sound quality. With an ultra-compact size and a weight of less than 3 oz, the PL118 fits easily into a pocket, a purse, or a backpack, and it has a built-in digital alarm clock and a sleep timer, it?s truly a must-have companion to keep you entertained and informed wherever you may be, ideal for travel and outdoors activities. Featuring a multi-functional jog dial, 5 self-explanatory control buttons and a large back-lit LCD display, operating the PL-118 takes little effort, and thanks to its proprietary ETM (Easy Tuning Method) technology, tuning into your favorite broadcast at home or discovering and exploring something new while travelling has never been easier, simply press a button to allow a quick and effective scan before the radio stores all legible stations into its memory, then just turn the jog dial to tune from one station to the next without hearing any annoying and unpleasant static or noise. The PL-118 has a built-in 40mm speaker that delivers loud, dynamic and crispy sound as well as a 3.5mm earphone jack for private listening. Specifications: FM Frequency Range: 76.0 - 108 MHz or 87.0 - 108.0 MHz (selectable) Tuning: manual or ETM FM Sensitivity (S/N=30 dB): < 3uV Signal selection: > 60 dB S/N ratio: > 55 dB FM stereo crosstalk: > 25 dB Output: > 100 mW Current: -Quiescent: < 17 mA -Standby: < 50 uA Speaker: 40 mm / 16 ohm / 500 mW Earphone: 3.5 mm/32 ohm Power sources: AAA x2 (not included) Unit Size: 4 ¼ x 3 x 1 inches Weight: 2.9 oz What?s in the box: PL118 FM radio English manual