Features: Mobile phones mini player, amplifier loudspeaker, Type C small speaker. Plug and play, no setting required. Pairing is convenient, time-saving, and easy to use. Not only can it increase the sound, but it can also improve the sound quality and experience lossless sound quality. Clear shell, small size and exquisited, integrated button. Independent power supply design, USB 5Pin charging port, fast charging. Build in 3.7V 250mAh battery, with a working time of up to 6 hours and long endurances. Specifications: Material: ABS Color: clear, black, blue(optional) Size: approx. 41x41x34mm/1.61x1.61x1.34inch Package Includes: 1Pc Mini Phone Speaker note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.