Features: Multifunctional design: It can be used as a speaker and for karaoke, meeting users' diverse entertainment needs. Multiple modes: Supports BT, TF card, headphone monitoring, Type-c charging and other modes, making it more convenient to use. High-quality sound: With the newly upgraded BT5.3 technology and DSP noise reduction chip, the sound quality is almost lossless, and the sound is louder and fuller. Intelligent monitoring function: Real-time ear return monitoring, free to practice singing anytime and anywhere without disturbing others. Colorful lighting effects: 6 colorful LED beads release 5 kinds of RGB atmosphere light effects, adding to the entertainment atmosphere. Wide compatibility: Supports mobile phones, TVs, tablets, computers and other devices, and is compatible with various mainstream APPs. Specification: Optional Model: A-Karaoke Machine + 1*Wireless Microphone / B-Karaoke Machine + 2*Wireless Microphones Optional Color: White / Pink Peak power: 5W*2 Charging current: DC5V 1A Battery: Speaker- 1200mAh; Microphone- 400mAh Adjustment mode: Button adjustment File format: Support MP3/ WMA/WAV Playing time: Medium volume about 8-10 hours BT: BT 5.3 La call: 16-core dual-magnetic speakers Signal-to-noise ratio: ≥90dB Frequency response: 120HZ-20KHZ Speaker size: 94*80*84mm Headphone interface: Support 3.5mm headphone synchronous monitoring Package size: 15.2*9.2*14.6cm Package weight: 441g; 522g Package list: 1* Speaker 1* User manual 1* Charging cable 1* Microphone