Features: brand new and high quality Bluetooth-compatible 5.0 provides instant pairing and stable transmission without interruptions. for most band bluetooth-compatible devices. Support U-disk ,TF card display. Using upgraded dynamic coil speakers to enhance the sense of depth, presence and space, and present a three-dimensional surround effect like a live scene. Small piece and easy to carry. Specifications: Material:Plastic Color:Blue, Gray, Pink ,Red(optional) Operating Range: Up to 33 feet (10 meters accessibility) Battery Life:About 8 hours Charging Port:USB Frequency Range:80Hz-18KHz Battery:1200mAh Signal Shielding:65dB Impedance:4ohm Sensitivity:500mv Speaker Size:135x75.8x48mm/5.31x2.98x1.89in Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xBluetooth-compatible Speaker