Features: brand new and high quality Bluetooth-compatible 5.0 can ensure fast pairing, compatibility with various devices, and has 10m operating rang. Bluetooth-compatible provides instant pairing and stable transmission without interruptions. for most band bluetooth-compatible devices. 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. With built-in 200mAh lithium battery, you can move it where you want. Specifications: Material: Metal+PBS Support:Bluetooth-compatible, Handsfree Call, Frequency:100HZ-20KHZ Charging Port: Mini USB Signal Shielding:≥75dB Product Size:38x37x37mm/1.5x1.46x1.46in Operating Range: up to 33 feet (10 meters accessibility) Battery Capacity:200mAh Option Color:Black,Blue,Gold,Purple (Optional) Package Includes: 1x Bluetooth-compatible Speaker 1x Charging Cable 1x Manual 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.