Four power sources: Power or USB charging (built-in 1200mAh battery) when at home, D batteries or solar panels when outdoors or when there is a power outage at home. Anywhere: Copper antenna enhances reception of 87.5-108MHz / AM 520-1700KHz / SW 5.9-18MHz. Tuning dial - Easily find a station with an oversized knob, perfect for seniors and outdoor adventures. Immersive audio experience: Rich sound from high-powered speakers, perfect for group listening. 5.0 Bluetooth allows quick connection to a computer or phone to play music, and local files can be played using a USB/TF card. Being able to immerse yourself in great music during a party greatly enhances the fun. Portability: Compact design - 7.5"L x 4.5"H x 3"W, 1.6 lbs, lighter than a hardcover book. - Great for kitchen workouts, camping trips, hiking, and can also be used to receive emergency broadcasts. Thoughtful gift choice: A collision of vintage and modern - Blends vintage charm and smart features. A thoughtful gift for parents, grandparents, or the tech-savvy person!