Allday portable listening: builtin 2000 mAh rechargeable battery delivers up to 12 hours of playback, so you don't need to AA batteries frequently. Reliable antiskip and memory: up to 100 seconds antiskip protection for standard CDs and 180 seconds for MP3 CDs, with a last memory function that resumes playback from where you stopped. Wide usage across travel and daily life: suitable for use in the car, on the bus, subway, train, airplane, and other settings. Portable and light design: weighs 1.0 lb and includes a carry bag for easy transport, whether you are on the move, in the car, traveling, or studying. Clear compatibility and performance: supports standard audio CDs and MP3 CDs, providing dependable playback in a compact, simple package. Practical use scenarios: Commuting and road trips: enjoy music or audiobooks during daily travel in cars, buses, subways, or trains. Air travel and long journeys: use during flights or long train rides for entertainment. Studying or athome listening: listen to music or audiobooks while studying or relaxing at home.