Description: 1. Frequency response range: 80Hz-20KHz 2. Battery: 250mAh 3. Charging: 5V/250mA 4. Charging duration: less than 1 hour 5. Standby time: ≥ 240 hours 6. Working time: about 5-6 hours 7. Size: 41 * 41 * 34mm 8. Weight: 43.5g (bare) ± 2g 9. Charging interface: Micro USB interface Specifications: 1. Plug and Play 2. No settings are required: pairing is convenient and time-saving 3.5x PA 4. Delicate and compact, integrated buttons 5. Long endurance Package Included: 1 * player, 1 * charging cable, 1 * manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.