Portable and Wireless Design: Havit SK818BT karaoke speaker is designed for easy portability and wireless connection, allowing you to take it anywhere and enjoy music with friends and family. Long-lasting Battery Life: With a 3.7v/1500mah battery, this speaker provides up to 6-8 hours of play time, perfect for outdoor gatherings or parties. Built-in Microphone and LED Light: The speaker comes with a built-in microphone and colorful LED lights, perfect for karaoke, adding fun to your party. Easy Connection Options: The speaker supports Bluetooth, TF card and auxiliary connection, allowing you to easily connect your devices and enjoy your favorite music. Compact and Durable Design: Made of ABS material, this speaker is compact, lightweight and durable, making it a great addition to any home, office or outdoor setting.