With its Bluetooth-compatible 5.0 chip, this speaker is stable in transmission, connects over long distances, and can provide you with stereo surround sound. Not only does it offer 360-degree Viper sound for an immersive music listening experience, it also supports TF card playback, allowing you to enjoy music without a mobile phone or other device. It is constructed of plastic material. The length of this product is 8.45cm and the width is 3.9cm. Suitable for bedrooms, living rooms, and so on, this wireless audio has a wide range of uses.