interconnection, dual wireless chorus 1500 mAh, high-capacity lithium battery, continuous singing time of 8-10 hours. Small and portable, surrounded by small volume and large volume. sound chip, four magic sounds, which children prefer, and freely switch a variety of different sound effects. Bluetooth 5.3, wireless , your exclusive tuner, Bluetooth /AUX/U disk /TF, multi-scene karaoke APP. HIFI stereo surround sound brings karaoke experience. The speaker has a variety of RGB color lighting effects. Professional mode, magical sound effects, etc., very suitable for face-to-face interaction and interactive karaoke with friends and family. This product supports Bluetooth, TF card, earphone monitoring and Type-C charging. This product is easy to connect and use without any complicated wiring. In addition, it is also compatible with a variety of devices (telephone, TV, tablet computer, computer, etc.) and applications to provide a great karaoke experience or on the road. (Please note that the TV needs a built-in Bluetooth function. ) Bluetooth version: V5.5 Horn power: 10Wx2 Frequency response: 100 Hz to 20 kHz Operating voltage: 5V/3A Battery specification: Built-in 1500 mAh Charging time: 3-4 hours Play time: 8-10 hours Charging interface: Type-C interface. File format: supports MP3/WMA/WAV. Colour:Black Material:plastic Package Contents: 1 x Wireless Bluetooth Speaker 2 x Microphones (The buttons are different, but not affect the usage) 1 x USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.