1. Material: aluminum alloy 2. Uses: conference microphone, karaoke microphone, church, stage performance, speech, recording, teaching, portable music player, etc. 3. Signal-to-noise ratio: 85dB 4. Frequency response: 20Hz-20KHz 5. Rated power: 10W 6. Battery capacity: 2600mAh 7. The remote control uses AAA batteries (not included) 8. Working time: 4-6 hours 9. Standby time: 30 days 10. Support TF card/AUX audio playback 11. Built-in sound card HIFI sound quality, powerful sound field is more shocking 12. Self-contained speakers without earphones 13. 6D surround sound, more dynamic 14. Bluetooth one-button link, wireless external speaker 15. High-performance DSP chip, eliminate distortion and prevent howling 16. High-fidelity microphone, automatically filter environmental noise 17. Built-in equalizer, adjustable high and low 18. A variety of voice changing functions to meet the needs of use 19. Aluminum alloy body, metal texture and comfortable grip 20. Plug-in earphones for real-time monitoring 21. Weight: 333 grams 22. Dimensions: 240x49mm