[Perfect sound quality]: Bluetooth speakers provide powerful sound and deep and precise bass. The magnesium alloy double diaphragm brings you a surround sound experience. Equipped with a lanyard, easy to carry. Ideal for indoor and outdoor: family, yoga, party, car, hiking, camping, cycling. Smart phones and iPhones support Micro USB charging, and provide a variety of mode options, including Bluetooth, TF card, AUX-IN and Flash player. [Bluetooth 5.0 fast connection]: Bluetooth 5.3 is compatible with Echo Dot, Android, IOS and Windows systems, and fully supports any available Bluetooth devices such as your mobile phone, notebook, tablet, computer, etc. [Splash-proof design]: Enjoy music to your heart's content, without worrying about damp or splashing water to damage the equipment. The connector is hidden under the rubber cover. The compact design makes it portable, ultra-light, and easy to put in a bag or backpack. [Good quality and low price]: The sound quality is good, the volume is small, and it adds a bit of charm. The Bluetooth connection is instant, stylish, and very suitable to be held in your hand. The attached strap is very practical. RAS sound quality is clear and clear, large volume is not saturated, and cost-effective