Bluetooth 5.3 and Wide Compatibility: A new generation of Bluetooth 5.3 technology, has lower power consumption than Bluetooth 5.0 but with faster transmission, stronger anti-interference ability and more stable signal without any delay.Our wireless speaker can maintain a stable and efficient connection at a range of 10 Meters, consuming less energy than the previous generation. The waterproof wireless speakers is compatible with all bluetooth devices, such like mobile phones, tablets, PC, etc.