Experience vibrant sound with the Spark 5W Light-Up Wireless Speaker, featuring a clear casing and colorful light modes for added fun. A QR code is printed on each item and/or gift box providing access to the latest user manual. Pair two units via TWS for immersive stereo sound. The built-in 800mAh lithium battery delivers up to 4 hours of playtime with charging time of 1.5 hours. Includes a USB to USB-C charging cable for easy recharging, making it perfect for music on the go! Complies with FCC, Prop 65, UN38.3. 3.25″ H x 3.75″ Diameter