Product description Size: 55 * 55 * 50mm Color: blue Material: metal Bluetooth version: Bluetooth V5.0 Nominal power: 5W Battery capacity: 3.7V / 500mAh Transmission range: Approx. 33ft / 10m Music playing time: Approx. 5-8 hours Package includes 1 * Mini wireless speaker 1 * USB cable 1 * manual 1.HiFi Sound Quality: The portable bluetooth speaker has shocking rich bass, large volume without voice break, 360 all around sound effect.Equipped with 5W high-quality speaker. Smooth and supple appearance gives you a great visual experience.High-frequency is transparent and bright sound, medium-frequency is clear and clean and low-frequency reaches pretty low but powerfull with a full sound. 2.Bluetooth 5.0:Generation of Bluetooth 5.0 technology, transmitted by technology, faster transmission,stronger anti-interference ability and more stable signal without any delay. This wireless speaker is compatible with multiple devices such as tablets, laptops, desktop computers, televisions and mobile phones. 3.Waterproof and Anti-Damage: Fully sealed design with IPX2 waterproof makes it not afraid of rain.Playing music at ease. You are never alone to sing in the shower with the bluetooth speaker. It is also anti-shock and anti-damage. 4.Long Battery Life: Small in size but large in capacity. Equipped with built-in 500mAh rechargeable lithium battery. Let your enjoy music without being uninterrupted from day to night.Meet your needs throughout the day. Give you a 5-8-hour uninterrupted tour of music. 5.Portable: Small portable Bluetooth speaker can be carried around and enjoy your listening anywhere, adding wonderful experience on your journey. Suitable for leisure, entertainment , office, indoor, outdoor, hiking, beach, etc.