Wireless Freedom: The rechargeable receiver requires only 2-3 hours of charging time and provides up to 8 hours of usage. It has a range of up to 50 meters (line of sight) for unrestricted movement during karaoke, concerts, or events. Multifunctional Use: This Bluetooth karaoke mixer works as a microphone, amplifier, and Bluetooth speaker. It supports connections via Bluetooth, TF cards, USB drives, and AUX cables, making it ideal for singing, music, or voice transmission. Dual Microphone Karaoke: Equipped with two microphones, each with a 1800 mAh battery, providing up to 5-8 hours of continuous use. Perfect for karaoke nights with family and friends, with stable signal transmission and no interruptions. Effective Noise Reduction: Multi-layer construction with dense meshes and high-quality foam reduces background noise and enhances the original sound. This ensures clear voice recording and an authentic sound experience. Compact KTV Solution: Ideal for private karaoke sessions or on the go. The compact design makes it easy to carry for travel, family gatherings, or parties. Creates an impressive KTV atmosphere with a real echo effect. Package Includes: 2 microphones, 4 rechargeable batteries, 2 microphone protective caps, 2 anti-slip rings, 2 noise protection shields, 1 charging cable, 1 6.5mm adapter, 1 3.5mm adapter, 1 user manual.