Product Material: Plastic Size: 178 * 60 * 60mm Colour: Black Power supply mode: Built-in lithium battery Output power: 10W Signal to noise ratio: 70db Function: anti-drop, waterproof, dustproof, call function, with LED light Package contents: 1 * LED bluetooth speaker, 1 * USB cable 1. 30h playing time 4000mAh portable power bank 3.5 hours charge The powerful 4000mAh Li-ion battery offers up to 15 hours of non-stop music. You can also use the portable speaker as a power bank, instantly charge your phone outdoors or in emergency time. Enjoy your music anytime, anywhere, no matter where you go. 2. 360 stereo sound 40mm dual drivers and two passive subwoofers bring powerful bass, but also has crystal clear mids and highs. Built-in high-quality microphone and noise-canceling technology ensure clearer hands-free calling and provide 360 surround sound. Hear your favorite music more clearly than ever, anywhere 3. IP67 Waterproof and Dustproof Shockproof IP67 waterproof bluetooth speaker with TPU silicone material perfectly protect wireless speaker from water and dust. Perfect for the beach or pool and even playing in the rain. In addition, it is extremely durable and has passed a large number of drop tests. Ideal for outdoor workouts, travel and hiking. 4. Fashionable LED light design The bluetooth wireless speaker has three light modes and portable design suitable for kitchen, party, outdoor and car. Light and music are the ideal companions for vacation or leisure. If you just want to enjoy music, you can also turn off the lights. Ideal for every Christmas party - no matter where you are celebrating 5. Wide compatibility The speaker box Bluetooth provides faster and more stable signal transmission via dual high-performance drivers. The Bluetooth range is 20m. This powerful Bluetooth speaker is compatible with any Bluetooth device. You can also use the 3.5mm cable to connect the portable bluetooth speaker to non-bluetooth devices like PC, desktop, TV and more.