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: Wirele Karaoke Machine Speaker Wirele connection: 5.0 Power supply voltage: 5V Frequency range: 20Hz-20KHz Transmiion 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 * Wirele 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. See more product details 1.Multi-function Karaoke Machine: Working range up to 33 feet, easy to connect wirele, AUX, TF/USB input. Karaoke System can record audio streams through a microphone inserted into a USB/TF card. Additionally, the USB port can charge smart devices. 2.Voice Changing Function: Dual wirele microphones with voice changing function. The karaoke machine acts as a microphone charging station and can be easily charged at the same time. The speaker and microphone are automatically connected when turned on. 3.Built-in DSP Chip: Powerful speakers give you a truly immersive listening experience. The built-in DSP chip helps the speaker adapt to different situations without distortion. 4.Multiple Sound Field Effects: Karaoke machines can turn the sound field effect into standard, popular music, rock, claical, treble, ba, and share with family and friends. 5.High-Capacity Battery: The speaker with a built-in rechargeable 7.4V/3000mAh battery and the microphone with a 3.7V/1500mAh lithium battery provide up to 3.5 hours of music playback.