Specifications:

• Compact size: 72 x 44 x 25 mm
• Audio input connector: 1/8" (3.5mm) stereo plug
• Power requirement: 2 AAA alkaline batteries
• Battery life: 13 hours typical
• Modulation: FM stereo
• Frequencies: 88.1, 88.3, 88.5, 88.7 MHz
• High stability crystal oscillator, phase-lock loop control (PLL)
• Signal distortion: less than 0.4%
• Frequency response: 50 Hz to 15 kHz
• Operating range: 10-30 feet, depending on the quality of the FM radio receiver (limited by FCC regulations)
• FCC part 15 compliant

How to use:

• Easy to use: Incredibly simple! Just plug it into the headphone jack of your music device, tune your car or home stereo to one of four FM frequencies, and listen!
• Quality: High fidelity, full stereo sound!
• Compatible: Works with virtually any portable audio device with a headphone or line-out jack.
• Power: Uses (2) AAA batteries