Features: Bluetooth-compatible speaker, with colorful led light, fashionable and cool, intelligent display, with clock and alarm clock function . Subwoofer diaphgram 50mm speaker unit. wireless connection, stable and fast. Build in humanized alarm clock function, can set two alarms to feel various warmth every morning. Support USB/bluetooth-compatible and more multiple playback modes. Small size and portable, unique design, gathering, camping, car driving, inddor and outdoor sound can play freely. Specifications: Material: ABS+Electronics Size: approx. 20x8cm/7.87x3.14inch Connection: Bluetooth-compatible connection Frequency response: 20Hz-20KHz Signal to noise ratio: ≥70db Effective distance: 10m Power supply: Type C Speaker unit: 50mm Package Includes: 1Pc Intelligent Bluetooth-compatible Speaker note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.