Features: brand new and high quality Bluetooth-compatible 5.0 provides instant pairing and stable transmission without interruptions. 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. USB powered desktop PC speakers equipped with a durable built-in 1200 mAh rechargeable battery. Upgrade anti-magnetic technology to avoid current noise. Compact size design and powered by rechargeable battery make it portable for travel and party. Specifications: Material:ABS Color:Black,Gray(optional) Bluetooth-compatible Version: 5.0 Operating Range: Up to 33 feet (10 meters accessibility) Charging Port:USB Frequency Range:100HZ-20KHZ Battery:1200mAh for Play Time:About 6 hours Music Format:MP3,WMA,Wav Signal Shielding: 75dB Expansion Storage:32GB Support U Card T-Flash Card Speaker Size:38.5x5.5x5.5cm/15.16x2.17x2.17in 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 1xCharging Cable 1x Audio Cable 1x User Manua