Fangrui Product Details 1. Fashionable Appearance Design Embellishes Your Desktop, Condenses The Aesthetic Standards Of Lifestyle, And Grasps The Essence Of Fashion Trends. 2. Multi-device Compatible Wireless Bluetooth Smart Connection Compatible With Most Bluetooth Devices On The Market Bluetooth Signal Connection Stable Bluetooth 5.0. 3. Usb Power Supply Is Fast And Practical Type-c Usb Power Supply, Low Power Consumption, Small Size, Easy To Use. 4. One Hand To Hold The Walkman Listening Small And Beautiful Body, Only The Size Of The Palm, Easy To Play And Carry With You Without Pressure.use In Multiple Scenes, Both Indoors And Outdoors. 5. Note:this Kit Contains The Accessories Required For 3d Printing Of Renderings. When You Receive It, It Only Contains The Accessories, Not The Renderings. Product Name: Diy Bluetooth Speaker Kit Built-in Battery Capacity: 400mah Connection: Bluetooth 5.0 Audio Range: 20hz-20khz Signal-to-noise Ratio: 260db Waterproof Level: Non-watertight Effective Range: 10m Speaker Specifications: 43w