Features: M9 Transparent BT5.1 Speaker, featuring color lighting and clearly auditory sound. This speaker boasts a 5W power output, Bluetooth5.1+EDR for seamlessly wireless auditory transmission, and elegant transparent that enhances any setting. For music enthusiasts who appreciate both superior sound and visually appealing devices. Perfectly for indoor gatherings or outdoor, offering up to 6hours of playing on a single charging. The M9 LED display and multifunctional capabilities, including small memory card input and handsfree calling, make it a versatiled addition to your auditory collection. Specifications: Product name:M9 Transparent BT5.1 Speaker Product color:black/white Voltages:DC5V+0.5/2A Power supply: USB-TPC Power:5W Battery:3.7V/800mAh Battery Capacity:800mAh Frequency Response Ranging:120HZ-18KHZ Speaker:42 5W Noise:80dB BT5.1 Version:5.1+EDR BT5.1 ranging:10meters Auditory:2.4Ghz Wireless auditory,memory Card Input transmission : 2.4G wireless auditory Charging time:3H Playback time:4-6H Net weight:384g Product Size:about 160x95x58MM/6.3x3.74x2.28in Package Includes: 1PC M9 Transparent BT5.1 Speaker note: Due to the problems of lighting effects there will be certain tolerances in the product, please understand. Please allow 0-2mm error due to manual measurement.