Description: Whether it's at an indoor dance or outdoor gathering, you can rock out to your favorite jams without the restrictive cords! You can enjoy music with the best sense of presence, power, and volume. Specification: Name: Wireless Karaoke Machine Speaker Wireless connection: 5.0 Power supply voltage: 5V Frequency range: 20Hz-20KHz Transmission distance: ≥10m Battery capacity: built-in 3000mAh lithium battery Microphone battery capacity: 1500mah Charging time: about 1.5 hours Play time: about 5 hours Color: Red/Black/Silver Package List: 1 * Wireless Microphone Speaker 2 * Microphone 1 * USB Cable 1 * Instruction Manual Notes: Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have a nuance. Due to manual measurement, there might be a tolerance in the product size.