The Kobra Wireless Speaker is an impressive and powerful audio accessory. With a powerful 4Ohm 5V speaker and built-in lithium battery, it delivers high-quality sound that will fill any room. The built-in lithium battery has a capacity of 600mAh and a charging voltage of 5V, 0. 5A, ensuring that you can enjoy your music for hours without having to worry about running out of power. The compact design makes it easy to take with you wherever you go, and the rechargeable battery ensures that you can enjoy your music for hours without having to worry about running out of power. Product Dimensions: 115mm W x 95mm H. Price includes: 10 Days Service. Pad Print. Setup is included.