Frequency receiving range: FM: 64-108MHz, AM: 522-1710khz (9K)/520-1710KHz (10K) Receiving sensitivity: FM: 8UV, AM: 3mv/M Product size: 100x60x15mm In-machine speaker: 40MM 80.5WPower supply method: two AA batteries (2x1.5V AAA) External power supply DC5V:. Low operating voltage 2V Stereo separation: 32DBDistortion: 1%Output power: 200MWExternal earplugs: 3.5MM/32X21. The shell is made of ABS material with fine workmanship.2. Digital radio frequency display and digital clock display3. High sensitivity, high stability, low failure rate, low energy consumption4. LCD displays channels and function buttons are easy to operate.5. Using 40mm high-quality speakers, the sound is loud, the sound quality is beautiful, and the listening accuracy is accurate Package includes: exquisite packaging box, product operating instructions, hand strap, earplugs, external power supply USB cable Note: 1. Please allow a little error due to manual measurement. Please make sure you don't mind before bidding. 2. Color may vary due to different monitors, please understand. Hello, please pay attention to your delivery address when purchasing products. If your delivery information (such as name, street, house number, doorbell/mailbox without name, etc.) is incorrect, the order will not be delivered correctly.)