Features: brand new and high quality Bluetooth-compatible 5.0 provides instant pairing and stable transmission without interruptions. Could be connected with bluetooth-compatible devices. USB powered desktop ,PC speakers. Upgrade anti-magnetic technology to avoid current noise. 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. Specifications: Material:Wood Color:Walnut Wood Color Option Type:Bluetooth-compatible Connection+Built in Battery;Bluetooth-compatible Connection;Wired Connection; Bluetooth-compatible Version: 5.0 Operating Range: About 33 feet (10 meters accessibility) Charging Port:USB Frequency Range:120Hz-18KHz Music Format:MP3 Signal Shielding: 70dB Speaker Size:37x9x7cm/14.57x3.54x2.76in Horn Power:4W Voltage:DC 5V 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: 1x Bluetooth-compatible Speaker 1x Cable